Make the copy of GURL in src/url buildable as a component build.

BUG=229660

Review URL: https://chromiumcodereview.appspot.com/15255009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@201723 0039d316-1c4b-4281-b951-d872f2087c98

9 files changed, 463 insertions, 414 deletions

diff --git a/url/gurl.h b/url/gurl.h
index ef4b585..0b8cf30 100644
--- a/url/gurl.h
+++ b/url/gurl.h
@@ -11,6 +11,7 @@
 #include "base/string16.h"
 #include "url/url_canon.h"
 #include "url/url_canon_stdstring.h"
+#include "url/url_export.h"
 #include "url/url_parse.h"
 
 class GURL {
@@ -19,11 +20,11 @@ class GURL {
   typedef url_canon::StdStringReplacements<string16> ReplacementsW;
 
   // Creates an empty, invalid URL.
-  GURL();
+  URL_EXPORT GURL();
 
   // Copy construction is relatively inexpensive, with most of the time going
   // to reallocating the string. It does not re-parse.
-  GURL(const GURL& other);
+  URL_EXPORT GURL(const GURL& other);
 
   // The narrow version requires the input be UTF-8. Invalid UTF-8 input will
   // result in an invalid URL.
@@ -32,20 +33,20 @@ class GURL {
   // encode the query parameters. It is probably sufficient for the narrow
   // version to assume the query parameter encoding should be the same as the
   // input encoding.
-  explicit GURL(const std::string& url_string
-                /*, output_param_encoding*/);
-  explicit GURL(const string16& url_string
-                /*, output_param_encoding*/);
+  URL_EXPORT explicit GURL(const std::string& url_string
+                           /*, output_param_encoding*/);
+  URL_EXPORT explicit GURL(const string16& url_string
+                           /*, output_param_encoding*/);
 
   // Constructor for URLs that have already been parsed and canonicalized. This
   // is used for conversions from KURL, for example. The caller must supply all
   // information associated with the URL, which must be correct and consistent.
-  GURL(const char* canonical_spec, size_t canonical_spec_len,
-       const url_parse::Parsed& parsed, bool is_valid);
+  URL_EXPORT GURL(const char* canonical_spec, size_t canonical_spec_len,
+                  const url_parse::Parsed& parsed, bool is_valid);
 
-  ~GURL();
+  URL_EXPORT ~GURL();
 
-  GURL& operator=(const GURL& other);
+  URL_EXPORT GURL& operator=(const GURL& other);
 
   // Returns true when this object represents a valid parsed URL. When not
   // valid, other functions will still succeed, but you will not get canonical
@@ -77,7 +78,7 @@ class GURL {
   // Used invalid_spec() below to get the unusable spec of an invalid URL. This
   // separation is designed to prevent errors that may cause security problems
   // that could result from the mistaken use of an invalid URL.
-  const std::string& spec() const;
+  URL_EXPORT const std::string& spec() const;
 
   // Returns the potentially invalid spec for a the URL. This spec MUST NOT be
   // modified or sent over the network. It is designed to be displayed in error
@@ -129,8 +130,8 @@ class GURL {
   //
   // It is an error to resolve a URL relative to an invalid URL. The result
   // will be the empty URL.
-  GURL Resolve(const std::string& relative) const;
-  GURL Resolve(const string16& relative) const;
+  URL_EXPORT GURL Resolve(const std::string& relative) const;
+  URL_EXPORT GURL Resolve(const string16& relative) const;
 
   // Like Resolve() above but takes a character set encoder which will be used
   // for any query text specified in the input. The charset converter parameter
@@ -139,10 +140,10 @@ class GURL {
   // TODO(brettw): These should be replaced with versions that take something
   // more friendly than a raw CharsetConverter (maybe like an ICU character set
   // name).
-  GURL ResolveWithCharsetConverter(
+  URL_EXPORT GURL ResolveWithCharsetConverter(
       const std::string& relative,
       url_canon::CharsetConverter* charset_converter) const;
-  GURL ResolveWithCharsetConverter(
+  URL_EXPORT GURL ResolveWithCharsetConverter(
       const string16& relative,
       url_canon::CharsetConverter* charset_converter) const;
 
@@ -157,9 +158,9 @@ class GURL {
   //
   // Note that we use the more general url_canon::Replacements type to give
   // callers extra flexibility rather than our override.
-  GURL ReplaceComponents(
+  URL_EXPORT GURL ReplaceComponents(
       const url_canon::Replacements<char>& replacements) const;
-  GURL ReplaceComponents(
+  URL_EXPORT GURL ReplaceComponents(
       const url_canon::Replacements<char16>& replacements) const;
 
   // A helper function that is equivalent to replacing the path with a slash
@@ -171,7 +172,7 @@ class GURL {
   //
   // It is an error to get an empty path on an invalid URL. The result
   // will be the empty URL.
-  GURL GetWithEmptyPath() const;
+  URL_EXPORT GURL GetWithEmptyPath() const;
 
   // A helper function to return a GURL containing just the scheme, host,
   // and port from a URL. Equivalent to clearing any username and password,
@@ -182,19 +183,19 @@ class GURL {
   //
   // It is an error to get the origin of an invalid URL. The result
   // will be the empty URL.
-  GURL GetOrigin() const;
+  URL_EXPORT GURL GetOrigin() const;
 
   // Returns true if the scheme for the current URL is a known "standard"
   // scheme. Standard schemes have an authority and a path section. This
   // includes file: and filesystem:, which some callers may want to filter out
   // explicitly by calling SchemeIsFile[System].
-  bool IsStandard() const;
+  URL_EXPORT bool IsStandard() const;
 
   // Returns true if the given parameter (should be lower-case ASCII to match
   // the canonicalized scheme) is the scheme for this URL. This call is more
   // efficient than getting the scheme and comparing it because no copies or
   // object constructions are done.
-  bool SchemeIs(const char* lower_ascii_scheme) const;
+  URL_EXPORT bool SchemeIs(const char* lower_ascii_scheme) const;
 
   // We often need to know if this is a file URL. File URLs are "standard", but
   // are often treated separately by some programs.
@@ -216,7 +217,7 @@ class GURL {
   // Returns true if the hostname is an IP address. Note: this function isn't
   // as cheap as a simple getter because it re-parses the hostname to verify.
   // This currently identifies only IPv4 addresses (bug 822685).
-  bool HostIsIPAddress() const;
+  URL_EXPORT bool HostIsIPAddress() const;
 
   // Getters for various components of the URL. The returned string will be
   // empty if the component is empty or is not present.
@@ -282,24 +283,24 @@ class GURL {
 
   // Returns a parsed version of the port. Can also be any of the special
   // values defined in Parsed for ExtractPort.
-  int IntPort() const;
+  URL_EXPORT int IntPort() const;
 
   // Returns the port number of the url, or the default port number.
   // If the scheme has no concept of port (or unknown default) returns
   // PORT_UNSPECIFIED.
-  int EffectiveIntPort() const;
+  URL_EXPORT int EffectiveIntPort() const;
 
   // Extracts the filename portion of the path and returns it. The filename
   // is everything after the last slash in the path. This may be empty.
-  std::string ExtractFileName() const;
+  URL_EXPORT std::string ExtractFileName() const;
 
   // Returns the path that should be sent to the server. This is the path,
   // parameter, and query portions of the URL. It is guaranteed to be ASCII.
-  std::string PathForRequest() const;
+  URL_EXPORT std::string PathForRequest() const;
 
   // Returns the host, excluding the square brackets surrounding IPv6 address
   // literals.  This can be useful for passing to getaddrinfo().
-  std::string HostNoBrackets() const;
+  URL_EXPORT std::string HostNoBrackets() const;
 
   // Returns true if this URL's host matches or is in the same domain as
   // the given input string. For example if this URL was "www.google.com",
@@ -311,7 +312,8 @@ class GURL {
   //
   // If function DomainIs has parameter domain_len, which means the parameter
   // lower_ascii_domain does not gurantee to terminate with NULL character.
-  bool DomainIs(const char* lower_ascii_domain, int domain_len) const;
+  URL_EXPORT bool DomainIs(const char* lower_ascii_domain,
+                           int domain_len) const;
 
   // If function DomainIs only has parameter lower_ascii_domain, which means
   // domain string should be terminate with NULL character.
@@ -322,12 +324,12 @@ class GURL {
 
   // Swaps the contents of this GURL object with the argument without doing
   // any memory allocations.
-  void Swap(GURL* other);
+  URL_EXPORT void Swap(GURL* other);
 
   // Returns a reference to a singleton empty GURL. This object is for callers
   // who return references but don't have anything to return in some cases.
   // This function may be called from any thread.
-  static const GURL& EmptyGURL();
+  URL_EXPORT static const GURL& EmptyGURL();
 
   // Returns the inner URL of a nested URL [currently only non-null for
   // filesystem: URLs].
@@ -361,6 +363,6 @@ class GURL {
 };
 
 // Stream operator so GURL can be used in assertion statements.
-std::ostream& operator<<(std::ostream& out, const GURL& url);
+URL_EXPORT std::ostream& operator<<(std::ostream& out, const GURL& url);
 
 #endif  // URL_GURL_H_
diff --git a/url/url.gyp b/url/url.gyp
index 0434669..d9b5807eb 100644
--- a/url/url.gyp
+++ b/url/url.gyp
@@ -9,7 +9,7 @@
   'targets': [
     {
       'target_name': 'url',
-      'type': 'static_library',
+      'type': '<(component)',
       'dependencies': [
         '../base/base.gyp:base',
         '../third_party/icu/icu.gyp:icudata',
@@ -52,7 +52,7 @@
         ],
       },
       'defines': [
-        'FULL_FILESYSTEM_URL_SUPPORT=1',
+        'URL_IMPLEMENTATION',
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [4267, ],
@@ -74,9 +74,6 @@
         'url_test_utils.h',
         'url_util_unittest.cc',
       ],
-      'defines': [
-        'FULL_FILESYSTEM_URL_SUPPORT=1',
-      ],
       'conditions': [
         ['os_posix==1 and OS!="mac" and OS!="ios"',
           {
diff --git a/url/url_canon.h b/url/url_canon.h
index 9987b95..7d4b75a 100644
--- a/url/url_canon.h
+++ b/url/url_canon.h
@@ -9,6 +9,7 @@
 #include <string.h>
 
 #include "base/string16.h"
+#include "url/url_export.h"
 #include "url/url_parse.h"
 
 namespace url_canon {
@@ -186,7 +187,7 @@ class RawCanonOutputW : public RawCanonOutputT<char16, fixed_capacity> {};
 //
 // Embedders will want to see the unit test for the ICU version.
 
-class CharsetConverter {
+class URL_EXPORT CharsetConverter {
  public:
   CharsetConverter() {}
   virtual ~CharsetConverter() {}
@@ -224,12 +225,12 @@ class CharsetConverter {
 //
 // Therefore, callers should not use the buffer, since it may actuall be empty,
 // use the computed pointer and |*output_len| instead.
-const char* RemoveURLWhitespace(const char* input, int input_len,
-                                CanonOutputT<char>* buffer,
-                                int* output_len);
-const char16* RemoveURLWhitespace(const char16* input, int input_len,
-                                  CanonOutputT<char16>* buffer,
-                                  int* output_len);
+URL_EXPORT const char* RemoveURLWhitespace(const char* input, int input_len,
+                                           CanonOutputT<char>* buffer,
+                                           int* output_len);
+URL_EXPORT const char16* RemoveURLWhitespace(const char16* input, int input_len,
+                                             CanonOutputT<char16>* buffer,
+                                             int* output_len);
 
 // IDN ------------------------------------------------------------------------
 
@@ -242,7 +243,9 @@ const char16* RemoveURLWhitespace(const char16* input, int input_len,
 // the length of the output will be set to the length of the new host name.
 //
 // On error, returns false. The output in this case is undefined.
-bool IDNToASCII(const char16* src, int src_len, CanonOutputW* output);
+URL_EXPORT bool IDNToASCII(const char16* src,
+                           int src_len,
+                           CanonOutputW* output);
 
 // Piece-by-piece canonicalizers ----------------------------------------------
 //
@@ -268,14 +271,14 @@ bool IDNToASCII(const char16* src, int src_len, CanonOutputW* output);
 // URLs.
 //
 // The 8-bit version requires UTF-8 encoding.
-bool CanonicalizeScheme(const char* spec,
-                        const url_parse::Component& scheme,
-                        CanonOutput* output,
-                        url_parse::Component* out_scheme);
-bool CanonicalizeScheme(const char16* spec,
-                        const url_parse::Component& scheme,
-                        CanonOutput* output,
-                        url_parse::Component* out_scheme);
+URL_EXPORT bool CanonicalizeScheme(const char* spec,
+                                   const url_parse::Component& scheme,
+                                   CanonOutput* output,
+                                   url_parse::Component* out_scheme);
+URL_EXPORT bool CanonicalizeScheme(const char16* spec,
+                                   const url_parse::Component& scheme,
+                                   CanonOutput* output,
+                                   url_parse::Component* out_scheme);
 
 // User info: username/password. If present, this will add the delimiters so
 // the output will be "<username>:<password>@" or "<username>@". Empty
@@ -287,20 +290,20 @@ bool CanonicalizeScheme(const char16* spec,
 // is legal as long as the two components don't overlap.
 //
 // The 8-bit version requires UTF-8 encoding.
-bool CanonicalizeUserInfo(const char* username_source,
-                          const url_parse::Component& username,
-                          const char* password_source,
-                          const url_parse::Component& password,
-                          CanonOutput* output,
-                          url_parse::Component* out_username,
-                          url_parse::Component* out_password);
-bool CanonicalizeUserInfo(const char16* username_source,
-                          const url_parse::Component& username,
-                          const char16* password_source,
-                          const url_parse::Component& password,
-                          CanonOutput* output,
-                          url_parse::Component* out_username,
-                          url_parse::Component* out_password);
+URL_EXPORT bool CanonicalizeUserInfo(const char* username_source,
+                                     const url_parse::Component& username,
+                                     const char* password_source,
+                                     const url_parse::Component& password,
+                                     CanonOutput* output,
+                                     url_parse::Component* out_username,
+                                     url_parse::Component* out_password);
+URL_EXPORT bool CanonicalizeUserInfo(const char16* username_source,
+                                     const url_parse::Component& username,
+                                     const char16* password_source,
+                                     const url_parse::Component& password,
+                                     CanonOutput* output,
+                                     url_parse::Component* out_username,
+                                     url_parse::Component* out_password);
 
 
 // This structure holds detailed state exported from the IP/Host canonicalizers.
@@ -353,27 +356,27 @@ struct CanonHostInfo {
 //
 // The 8-bit version requires UTF-8 encoding.  Use this version when you only
 // need to know whether canonicalization succeeded.
-bool CanonicalizeHost(const char* spec,
-                      const url_parse::Component& host,
-                      CanonOutput* output,
-                      url_parse::Component* out_host);
-bool CanonicalizeHost(const char16* spec,
-                      const url_parse::Component& host,
-                      CanonOutput* output,
-                      url_parse::Component* out_host);
+URL_EXPORT bool CanonicalizeHost(const char* spec,
+                                 const url_parse::Component& host,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_host);
+URL_EXPORT bool CanonicalizeHost(const char16* spec,
+                                 const url_parse::Component& host,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_host);
 
 // Extended version of CanonicalizeHost, which returns additional information.
 // Use this when you need to know whether the hostname was an IP address.
 // A successful return is indicated by host_info->family != BROKEN.  See the
 // definition of CanonHostInfo above for details.
-void CanonicalizeHostVerbose(const char* spec,
-                             const url_parse::Component& host,
-                             CanonOutput* output,
-                             CanonHostInfo* host_info);
-void CanonicalizeHostVerbose(const char16* spec,
-                             const url_parse::Component& host,
-                             CanonOutput* output,
-                             CanonHostInfo* host_info);
+URL_EXPORT void CanonicalizeHostVerbose(const char* spec,
+                                        const url_parse::Component& host,
+                                        CanonOutput* output,
+                                        CanonHostInfo* host_info);
+URL_EXPORT void CanonicalizeHostVerbose(const char16* spec,
+                                        const url_parse::Component& host,
+                                        CanonOutput* output,
+                                        CanonHostInfo* host_info);
 
 
 // IP addresses.
@@ -386,34 +389,34 @@ void CanonicalizeHostVerbose(const char16* spec,
 // This is called AUTOMATICALLY from the host canonicalizer, which ensures that
 // the input is unescaped and name-prepped, etc. It should not normally be
 // necessary or wise to call this directly.
-void CanonicalizeIPAddress(const char* spec,
-                           const url_parse::Component& host,
-                           CanonOutput* output,
-                           CanonHostInfo* host_info);
-void CanonicalizeIPAddress(const char16* spec,
-                           const url_parse::Component& host,
-                           CanonOutput* output,
-                           CanonHostInfo* host_info);
+URL_EXPORT void CanonicalizeIPAddress(const char* spec,
+                                      const url_parse::Component& host,
+                                      CanonOutput* output,
+                                      CanonHostInfo* host_info);
+URL_EXPORT void CanonicalizeIPAddress(const char16* spec,
+                                      const url_parse::Component& host,
+                                      CanonOutput* output,
+                                      CanonHostInfo* host_info);
 
 // Port: this function will add the colon for the port if a port is present.
 // The caller can pass url_parse::PORT_UNSPECIFIED as the
 // default_port_for_scheme argument if there is no default port.
 //
 // The 8-bit version requires UTF-8 encoding.
-bool CanonicalizePort(const char* spec,
-                      const url_parse::Component& port,
-                      int default_port_for_scheme,
-                      CanonOutput* output,
-                      url_parse::Component* out_port);
-bool CanonicalizePort(const char16* spec,
-                      const url_parse::Component& port,
-                      int default_port_for_scheme,
-                      CanonOutput* output,
-                      url_parse::Component* out_port);
+URL_EXPORT bool CanonicalizePort(const char* spec,
+                                 const url_parse::Component& port,
+                                 int default_port_for_scheme,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_port);
+URL_EXPORT bool CanonicalizePort(const char16* spec,
+                                 const url_parse::Component& port,
+                                 int default_port_for_scheme,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_port);
 
 // Returns the default port for the given canonical scheme, or PORT_UNSPECIFIED
 // if the scheme is unknown.
-int DefaultPortForScheme(const char* scheme, int scheme_len);
+URL_EXPORT int DefaultPortForScheme(const char* scheme, int scheme_len);
 
 // Path. If the input does not begin in a slash (including if the input is
 // empty), we'll prepend a slash to the path to make it canonical.
@@ -424,14 +427,14 @@ int DefaultPortForScheme(const char* scheme, int scheme_len);
 // an issue. Somebody giving us an 8-bit path is responsible for generating
 // the path that the server expects (we'll escape high-bit characters), so
 // if something is invalid, it's their problem.
-bool CanonicalizePath(const char* spec,
-                      const url_parse::Component& path,
-                      CanonOutput* output,
-                      url_parse::Component* out_path);
-bool CanonicalizePath(const char16* spec,
-                      const url_parse::Component& path,
-                      CanonOutput* output,
-                      url_parse::Component* out_path);
+URL_EXPORT bool CanonicalizePath(const char* spec,
+                                 const url_parse::Component& path,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_path);
+URL_EXPORT bool CanonicalizePath(const char16* spec,
+                                 const url_parse::Component& path,
+                                 CanonOutput* output,
+                                 url_parse::Component* out_path);
 
 // Canonicalizes the input as a file path. This is like CanonicalizePath except
 // that it also handles Windows drive specs. For example, the path can begin
@@ -439,14 +442,14 @@ bool CanonicalizePath(const char16* spec,
 // The string will be appended to |*output| and |*out_path| will be updated.
 //
 // The 8-bit version requires UTF-8 encoding.
-bool FileCanonicalizePath(const char* spec,
-                          const url_parse::Component& path,
-                          CanonOutput* output,
-                          url_parse::Component* out_path);
-bool FileCanonicalizePath(const char16* spec,
-                          const url_parse::Component& path,
-                          CanonOutput* output,
-                          url_parse::Component* out_path);
+URL_EXPORT bool FileCanonicalizePath(const char* spec,
+                                     const url_parse::Component& path,
+                                     CanonOutput* output,
+                                     url_parse::Component* out_path);
+URL_EXPORT bool FileCanonicalizePath(const char16* spec,
+                                     const url_parse::Component& path,
+                                     CanonOutput* output,
+                                     url_parse::Component* out_path);
 
 // Query: Prepends the ? if needed.
 //
@@ -460,16 +463,16 @@ bool FileCanonicalizePath(const char16* spec,
 // if necessary, for ASCII input, no conversions are necessary.
 //
 // The converter can be NULL. In this case, the output encoding will be UTF-8.
-void CanonicalizeQuery(const char* spec,
-                       const url_parse::Component& query,
-                       CharsetConverter* converter,
-                       CanonOutput* output,
-                       url_parse::Component* out_query);
-void CanonicalizeQuery(const char16* spec,
-                       const url_parse::Component& query,
-                       CharsetConverter* converter,
-                       CanonOutput* output,
-                       url_parse::Component* out_query);
+URL_EXPORT void CanonicalizeQuery(const char* spec,
+                                  const url_parse::Component& query,
+                                  CharsetConverter* converter,
+                                  CanonOutput* output,
+                                  url_parse::Component* out_query);
+URL_EXPORT void CanonicalizeQuery(const char16* spec,
+                                  const url_parse::Component& query,
+                                  CharsetConverter* converter,
+                                  CanonOutput* output,
+                                  url_parse::Component* out_query);
 
 // Ref: Prepends the # if needed. The output will be UTF-8 (this is the only
 // canonicalizer that does not produce ASCII output). The output is
@@ -477,14 +480,14 @@ void CanonicalizeQuery(const char16* spec,
 //
 // This function will not fail. If the input is invalid UTF-8/UTF-16, we'll use
 // the "Unicode replacement character" for the confusing bits and copy the rest.
-void CanonicalizeRef(const char* spec,
-                     const url_parse::Component& path,
-                     CanonOutput* output,
-                     url_parse::Component* out_path);
-void CanonicalizeRef(const char16* spec,
-                     const url_parse::Component& path,
-                     CanonOutput* output,
-                     url_parse::Component* out_path);
+URL_EXPORT void CanonicalizeRef(const char* spec,
+                                const url_parse::Component& path,
+                                CanonOutput* output,
+                                url_parse::Component* out_path);
+URL_EXPORT void CanonicalizeRef(const char16* spec,
+                                const url_parse::Component& path,
+                                CanonOutput* output,
+                                url_parse::Component* out_path);
 
 // Full canonicalizer ---------------------------------------------------------
 //
@@ -497,75 +500,75 @@ void CanonicalizeRef(const char16* spec,
 // The 8-bit versions require UTF-8 encoding.
 
 // Use for standard URLs with authorities and paths.
-bool CanonicalizeStandardURL(const char* spec,
-                             int spec_len,
-                             const url_parse::Parsed& parsed,
-                             CharsetConverter* query_converter,
-                             CanonOutput* output,
-                             url_parse::Parsed* new_parsed);
-bool CanonicalizeStandardURL(const char16* spec,
-                             int spec_len,
-                             const url_parse::Parsed& parsed,
-                             CharsetConverter* query_converter,
-                             CanonOutput* output,
-                             url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeStandardURL(const char* spec,
+                                        int spec_len,
+                                        const url_parse::Parsed& parsed,
+                                        CharsetConverter* query_converter,
+                                        CanonOutput* output,
+                                        url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeStandardURL(const char16* spec,
+                                        int spec_len,
+                                        const url_parse::Parsed& parsed,
+                                        CharsetConverter* query_converter,
+                                        CanonOutput* output,
+                                        url_parse::Parsed* new_parsed);
 
 // Use for file URLs.
-bool CanonicalizeFileURL(const char* spec,
-                         int spec_len,
-                         const url_parse::Parsed& parsed,
-                         CharsetConverter* query_converter,
-                         CanonOutput* output,
-                         url_parse::Parsed* new_parsed);
-bool CanonicalizeFileURL(const char16* spec,
-                         int spec_len,
-                         const url_parse::Parsed& parsed,
-                         CharsetConverter* query_converter,
-                         CanonOutput* output,
-                         url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeFileURL(const char* spec,
+                                    int spec_len,
+                                    const url_parse::Parsed& parsed,
+                                    CharsetConverter* query_converter,
+                                    CanonOutput* output,
+                                    url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeFileURL(const char16* spec,
+                                    int spec_len,
+                                    const url_parse::Parsed& parsed,
+                                    CharsetConverter* query_converter,
+                                    CanonOutput* output,
+                                    url_parse::Parsed* new_parsed);
 
 // Use for filesystem URLs.
-bool CanonicalizeFileSystemURL(const char* spec,
-                               int spec_len,
-                               const url_parse::Parsed& parsed,
-                               CharsetConverter* query_converter,
-                               CanonOutput* output,
-                               url_parse::Parsed* new_parsed);
-bool CanonicalizeFileSystemURL(const char16* spec,
-                               int spec_len,
-                               const url_parse::Parsed& parsed,
-                               CharsetConverter* query_converter,
-                               CanonOutput* output,
-                               url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeFileSystemURL(const char* spec,
+                                          int spec_len,
+                                          const url_parse::Parsed& parsed,
+                                          CharsetConverter* query_converter,
+                                          CanonOutput* output,
+                                          url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeFileSystemURL(const char16* spec,
+                                          int spec_len,
+                                          const url_parse::Parsed& parsed,
+                                          CharsetConverter* query_converter,
+                                          CanonOutput* output,
+                                          url_parse::Parsed* new_parsed);
 
 // Use for path URLs such as javascript. This does not modify the path in any
 // way, for example, by escaping it.
-bool CanonicalizePathURL(const char* spec,
-                         int spec_len,
-                         const url_parse::Parsed& parsed,
-                         CanonOutput* output,
-                         url_parse::Parsed* new_parsed);
-bool CanonicalizePathURL(const char16* spec,
-                         int spec_len,
-                         const url_parse::Parsed& parsed,
-                         CanonOutput* output,
-                         url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizePathURL(const char* spec,
+                                    int spec_len,
+                                    const url_parse::Parsed& parsed,
+                                    CanonOutput* output,
+                                    url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizePathURL(const char16* spec,
+                                    int spec_len,
+                                    const url_parse::Parsed& parsed,
+                                    CanonOutput* output,
+                                    url_parse::Parsed* new_parsed);
 
 // Use for mailto URLs. This "canonicalizes" the url into a path and query
 // component. It does not attempt to merge "to" fields. It uses UTF-8 for
 // the query encoding if there is a query. This is because a mailto URL is
 // really intended for an external mail program, and the encoding of a page,
 // etc. which would influence a query encoding normally are irrelevant.
-bool CanonicalizeMailtoURL(const char* spec,
-                           int spec_len,
-                           const url_parse::Parsed& parsed,
-                           CanonOutput* output,
-                           url_parse::Parsed* new_parsed);
-bool CanonicalizeMailtoURL(const char16* spec,
-                           int spec_len,
-                           const url_parse::Parsed& parsed,
-                           CanonOutput* output,
-                           url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeMailtoURL(const char* spec,
+                                      int spec_len,
+                                      const url_parse::Parsed& parsed,
+                                      CanonOutput* output,
+                                      url_parse::Parsed* new_parsed);
+URL_EXPORT bool CanonicalizeMailtoURL(const char16* spec,
+                                      int spec_len,
+                                      const url_parse::Parsed& parsed,
+                                      CanonOutput* output,
+                                      url_parse::Parsed* new_parsed);
 
 // Part replacer --------------------------------------------------------------
 
@@ -750,74 +753,74 @@ class Replacements {
 };
 
 // The base must be an 8-bit canonical URL.
-bool ReplaceStandardURL(const char* base,
-                        const url_parse::Parsed& base_parsed,
-                        const Replacements<char>& replacements,
-                        CharsetConverter* query_converter,
-                        CanonOutput* output,
-                        url_parse::Parsed* new_parsed);
-bool ReplaceStandardURL(const char* base,
-                        const url_parse::Parsed& base_parsed,
-                        const Replacements<char16>& replacements,
-                        CharsetConverter* query_converter,
-                        CanonOutput* output,
-                        url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceStandardURL(const char* base,
+                                   const url_parse::Parsed& base_parsed,
+                                   const Replacements<char>& replacements,
+                                   CharsetConverter* query_converter,
+                                   CanonOutput* output,
+                                   url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceStandardURL(const char* base,
+                                   const url_parse::Parsed& base_parsed,
+                                   const Replacements<char16>& replacements,
+                                   CharsetConverter* query_converter,
+                                   CanonOutput* output,
+                                   url_parse::Parsed* new_parsed);
 
 // Filesystem URLs can only have the path, query, or ref replaced.
 // All other components will be ignored.
-bool ReplaceFileSystemURL(const char* base,
-                          const url_parse::Parsed& base_parsed,
-                          const Replacements<char>& replacements,
-                          CharsetConverter* query_converter,
-                          CanonOutput* output,
-                          url_parse::Parsed* new_parsed);
-bool ReplaceFileSystemURL(const char* base,
-                          const url_parse::Parsed& base_parsed,
-                          const Replacements<char16>& replacements,
-                          CharsetConverter* query_converter,
-                          CanonOutput* output,
-                          url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceFileSystemURL(const char* base,
+                                     const url_parse::Parsed& base_parsed,
+                                     const Replacements<char>& replacements,
+                                     CharsetConverter* query_converter,
+                                     CanonOutput* output,
+                                     url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceFileSystemURL(const char* base,
+                                     const url_parse::Parsed& base_parsed,
+                                     const Replacements<char16>& replacements,
+                                     CharsetConverter* query_converter,
+                                     CanonOutput* output,
+                                     url_parse::Parsed* new_parsed);
 
 // Replacing some parts of a file URL is not permitted. Everything except
 // the host, path, query, and ref will be ignored.
-bool ReplaceFileURL(const char* base,
-                    const url_parse::Parsed& base_parsed,
-                    const Replacements<char>& replacements,
-                    CharsetConverter* query_converter,
-                    CanonOutput* output,
-                    url_parse::Parsed* new_parsed);
-bool ReplaceFileURL(const char* base,
-                    const url_parse::Parsed& base_parsed,
-                    const Replacements<char16>& replacements,
-                    CharsetConverter* query_converter,
-                    CanonOutput* output,
-                    url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceFileURL(const char* base,
+                               const url_parse::Parsed& base_parsed,
+                               const Replacements<char>& replacements,
+                               CharsetConverter* query_converter,
+                               CanonOutput* output,
+                               url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceFileURL(const char* base,
+                               const url_parse::Parsed& base_parsed,
+                               const Replacements<char16>& replacements,
+                               CharsetConverter* query_converter,
+                               CanonOutput* output,
+                               url_parse::Parsed* new_parsed);
 
 // Path URLs can only have the scheme and path replaced. All other components
 // will be ignored.
-bool ReplacePathURL(const char* base,
-                    const url_parse::Parsed& base_parsed,
-                    const Replacements<char>& replacements,
-                    CanonOutput* output,
-                    url_parse::Parsed* new_parsed);
-bool ReplacePathURL(const char* base,
-                    const url_parse::Parsed& base_parsed,
-                    const Replacements<char16>& replacements,
-                    CanonOutput* output,
-                    url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplacePathURL(const char* base,
+                               const url_parse::Parsed& base_parsed,
+                               const Replacements<char>& replacements,
+                               CanonOutput* output,
+                               url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplacePathURL(const char* base,
+                               const url_parse::Parsed& base_parsed,
+                               const Replacements<char16>& replacements,
+                               CanonOutput* output,
+                               url_parse::Parsed* new_parsed);
 
 // Mailto URLs can only have the scheme, path, and query replaced.
 // All other components will be ignored.
-bool ReplaceMailtoURL(const char* base,
-                      const url_parse::Parsed& base_parsed,
-                      const Replacements<char>& replacements,
-                      CanonOutput* output,
-                      url_parse::Parsed* new_parsed);
-bool ReplaceMailtoURL(const char* base,
-                      const url_parse::Parsed& base_parsed,
-                      const Replacements<char16>& replacements,
-                      CanonOutput* output,
-                      url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceMailtoURL(const char* base,
+                                 const url_parse::Parsed& base_parsed,
+                                 const Replacements<char>& replacements,
+                                 CanonOutput* output,
+                                 url_parse::Parsed* new_parsed);
+URL_EXPORT bool ReplaceMailtoURL(const char* base,
+                                 const url_parse::Parsed& base_parsed,
+                                 const Replacements<char16>& replacements,
+                                 CanonOutput* output,
+                                 url_parse::Parsed* new_parsed);
 
 // Relative URL ---------------------------------------------------------------
 
@@ -832,20 +835,20 @@ bool ReplaceMailtoURL(const char* base,
 // not). Failure means that the combination of URLs doesn't make any sense.
 //
 // The base URL should always be canonical, therefore is ASCII.
-bool IsRelativeURL(const char* base,
-                   const url_parse::Parsed& base_parsed,
-                   const char* fragment,
-                   int fragment_len,
-                   bool is_base_hierarchical,
-                   bool* is_relative,
-                   url_parse::Component* relative_component);
-bool IsRelativeURL(const char* base,
-                   const url_parse::Parsed& base_parsed,
-                   const char16* fragment,
-                   int fragment_len,
-                   bool is_base_hierarchical,
-                   bool* is_relative,
-                   url_parse::Component* relative_component);
+URL_EXPORT bool IsRelativeURL(const char* base,
+                              const url_parse::Parsed& base_parsed,
+                              const char* fragment,
+                              int fragment_len,
+                              bool is_base_hierarchical,
+                              bool* is_relative,
+                              url_parse::Component* relative_component);
+URL_EXPORT bool IsRelativeURL(const char* base,
+                              const url_parse::Parsed& base_parsed,
+                              const char16* fragment,
+                              int fragment_len,
+                              bool is_base_hierarchical,
+                              bool* is_relative,
+                              url_parse::Component* relative_component);
 
 // Given a canonical parsed source URL, a URL fragment known to be relative,
 // and the identified relevant portion of the relative URL (computed by
@@ -865,22 +868,24 @@ bool IsRelativeURL(const char* base,
 // Returns true on success. On failure, the output will be "something
 // reasonable" that will be consistent and valid, just probably not what
 // was intended by the web page author or caller.
-bool ResolveRelativeURL(const char* base_url,
-                        const url_parse::Parsed& base_parsed,
-                        bool base_is_file,
-                        const char* relative_url,
-                        const url_parse::Component& relative_component,
-                        CharsetConverter* query_converter,
-                        CanonOutput* output,
-                        url_parse::Parsed* out_parsed);
-bool ResolveRelativeURL(const char* base_url,
-                        const url_parse::Parsed& base_parsed,
-                        bool base_is_file,
-                        const char16* relative_url,
-                        const url_parse::Component& relative_component,
-                        CharsetConverter* query_converter,
-                        CanonOutput* output,
-                        url_parse::Parsed* out_parsed);
+URL_EXPORT bool ResolveRelativeURL(
+    const char* base_url,
+    const url_parse::Parsed& base_parsed,
+    bool base_is_file,
+    const char* relative_url,
+    const url_parse::Component& relative_component,
+    CharsetConverter* query_converter,
+    CanonOutput* output,
+    url_parse::Parsed* out_parsed);
+URL_EXPORT bool ResolveRelativeURL(
+    const char* base_url,
+    const url_parse::Parsed& base_parsed,
+    bool base_is_file,
+    const char16* relative_url,
+    const url_parse::Component& relative_component,
+    CharsetConverter* query_converter,
+    CanonOutput* output,
+    url_parse::Parsed* out_parsed);
 
 }  // namespace url_canon
 
diff --git a/url/url_canon_icu.h b/url/url_canon_icu.h
index d8eacbf..1f9f092 100644
--- a/url/url_canon_icu.h
+++ b/url/url_canon_icu.h
@@ -8,6 +8,7 @@
 // ICU integration functions.
 
 #include "url/url_canon.h"
+#include "url/url_export.h"
 
 typedef struct UConverter UConverter;
 
@@ -15,7 +16,7 @@ namespace url_canon {
 
 // An implementation of CharsetConverter that implementations can use to
 // interface the canonicalizer with ICU's conversion routines.
-class ICUCharsetConverter : public CharsetConverter {
+class URL_EXPORT ICUCharsetConverter : public CharsetConverter {
  public:
   // Constructs a converter using an already-existing ICU character set
   // converter. This converter is NOT owned by this object; the lifetime must
diff --git a/url/url_canon_internal.h b/url/url_canon_internal.h
index 265bdfd..23adc9e 100644
--- a/url/url_canon_internal.h
+++ b/url/url_canon_internal.h
@@ -83,7 +83,7 @@ void AppendStringOfType(const char16* source, int length,
 
 // Maps the hex numerical values 0x0 to 0xf to the corresponding ASCII digit
 // that will be used to represent it.
-extern const char kHexCharLookup[0x10];
+URL_EXPORT extern const char kHexCharLookup[0x10];
 
 // This lookup table allows fast conversion between ASCII hex letters and their
 // corresponding numerical value. The 8-bit range is divided up into 8
@@ -150,8 +150,8 @@ extern const char16 kUnicodeReplacementCharacter;
 // (for a single-byte ASCII character, it will not be changed).
 //
 // Implementation is in url_canon_icu.cc.
-bool ReadUTFChar(const char* str, int* begin, int length,
-                 unsigned* code_point_out);
+URL_EXPORT bool ReadUTFChar(const char* str, int* begin, int length,
+                            unsigned* code_point_out);
 
 // Generic To-UTF-8 converter. This will call the given append method for each
 // character that should be appended, with the given output method. Wrappers
@@ -227,8 +227,8 @@ inline void AppendUTF8EscapedValue(unsigned char_value, CanonOutput* output) {
 // (for a single-16-bit-word character, it will not be changed).
 //
 // Implementation is in url_canon_icu.cc.
-bool ReadUTFChar(const char16* str, int* begin, int length,
-                 unsigned* code_point);
+URL_EXPORT bool ReadUTFChar(const char16* str, int* begin, int length,
+                            unsigned* code_point);
 
 // Equivalent to U16_APPEND_UNSAFE in ICU but uses our output method.
 inline void AppendUTF16Value(unsigned code_point,
@@ -346,10 +346,10 @@ void AppendInvalidNarrowString(const char16* spec, int begin, int end,
 // replacing the invalid characters with the "invalid character". It will
 // return false in the failure case, and the caller should not continue as
 // normal.
-bool ConvertUTF16ToUTF8(const char16* input, int input_len,
-                        CanonOutput* output);
-bool ConvertUTF8ToUTF16(const char* input, int input_len,
-                        CanonOutputT<char16>* output);
+URL_EXPORT bool ConvertUTF16ToUTF8(const char16* input, int input_len,
+                                   CanonOutput* output);
+URL_EXPORT bool ConvertUTF8ToUTF16(const char* input, int input_len,
+                                   CanonOutputT<char16>* output);
 
 // Converts from UTF-16 to 8-bit using the character set converter. If the
 // converter is NULL, this will use UTF-8.
@@ -408,9 +408,10 @@ bool CanonicalizePartialPath(const char16* spec,
 #ifndef WIN32
 
 // Implementations of Windows' int-to-string conversions
-int _itoa_s(int value, char* buffer, size_t size_in_chars, int radix);
-int _itow_s(int value, char16* buffer, size_t size_in_chars,
-            int radix);
+URL_EXPORT int _itoa_s(int value, char* buffer, size_t size_in_chars,
+                       int radix);
+URL_EXPORT int _itow_s(int value, char16* buffer, size_t size_in_chars,
+                       int radix);
 
 // Secure template overloads for these functions
 template<size_t N>
diff --git a/url/url_canon_ip.h b/url/url_canon_ip.h
index bf4b4ad..fd288ad 100644
--- a/url/url_canon_ip.h
+++ b/url/url_canon_ip.h
@@ -7,17 +7,18 @@
 
 #include "base/string16.h"
 #include "url/url_canon.h"
+#include "url/url_export.h"
 #include "url/url_parse.h"
 
 namespace url_canon {
 
 // Writes the given IPv4 address to |output|.
-void AppendIPv4Address(const unsigned char address[4],
-                       CanonOutput* output);
+URL_EXPORT void AppendIPv4Address(const unsigned char address[4],
+                                  CanonOutput* output);
 
 // Writes the given IPv6 address to |output|.
-void AppendIPv6Address(const unsigned char address[16],
-                       CanonOutput* output);
+URL_EXPORT void AppendIPv6Address(const unsigned char address[16],
+                                  CanonOutput* output);
 
 // Searches the host name for the portions of the IPv4 address. On success,
 // each component will be placed into |components| and it will return true.
@@ -37,12 +38,12 @@ void AppendIPv6Address(const unsigned char address[16],
 // Mozilla), so this code path never gets hit. Our host canonicalization will
 // notice these spaces and escape them, which will make IP address finding
 // fail. This seems like better behavior than stripping after a space.
-bool FindIPv4Components(const char* spec,
-                        const url_parse::Component& host,
-                                 url_parse::Component components[4]);
-bool FindIPv4Components(const char16* spec,
-                        const url_parse::Component& host,
-                                 url_parse::Component components[4]);
+URL_EXPORT bool FindIPv4Components(const char* spec,
+                                   const url_parse::Component& host,
+                                   url_parse::Component components[4]);
+URL_EXPORT bool FindIPv4Components(const char16* spec,
+                                   const url_parse::Component& host,
+                                   url_parse::Component components[4]);
 
 // Converts an IPv4 address to a 32-bit number (network byte order).
 //
@@ -55,12 +56,12 @@ bool FindIPv4Components(const char16* spec,
 //
 // On success, |num_ipv4_components| will be populated with the number of
 // components in the IPv4 address.
-CanonHostInfo::Family IPv4AddressToNumber(
+URL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(
     const char* spec,
     const url_parse::Component& host,
     unsigned char address[4],
     int* num_ipv4_components);
-CanonHostInfo::Family IPv4AddressToNumber(
+URL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(
     const char16* spec,
     const url_parse::Component& host,
     unsigned char address[4],
@@ -71,12 +72,12 @@ CanonHostInfo::Family IPv4AddressToNumber(
 //
 // NOTE that |host| is expected to be surrounded by square brackets.
 // i.e. "[::1]" rather than "::1".
-bool IPv6AddressToNumber(const char* spec,
-                         const url_parse::Component& host,
-                         unsigned char address[16]);
-bool IPv6AddressToNumber(const char16* spec,
-                         const url_parse::Component& host,
-                         unsigned char address[16]);
+URL_EXPORT bool IPv6AddressToNumber(const char* spec,
+                                    const url_parse::Component& host,
+                                    unsigned char address[16]);
+URL_EXPORT bool IPv6AddressToNumber(const char16* spec,
+                                    const url_parse::Component& host,
+                                    unsigned char address[16]);
 
 }  // namespace url_canon
 
diff --git a/url/url_export.h b/url/url_export.h
new file mode 100644
index 0000000..9766ed5
--- /dev/null
+++ b/url/url_export.h
@@ -0,0 +1,33 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef URL_URL_EXPORT_H_
+#define URL_URL_EXPORT_H_
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(URL_IMPLEMENTATION)
+#define URL_EXPORT __declspec(dllexport)
+#else
+#define URL_EXPORT __declspec(dllimport)
+#endif  // defined(URL_IMPLEMENTATION)
+
+#else  // !defined(WIN32)
+
+#if defined(URL_IMPLEMENTATION)
+#define URL_EXPORT __attribute__((visibility("default")))
+#else
+#define URL_EXPORT
+#endif  // defined(URL_IMPLEMENTATION)
+
+#endif  // defined(WIN32)
+
+#else  // !defined(COMPONENT_BUILD)
+
+#define URL_EXPORT
+
+#endif
+
+#endif  // URL_URL_EXPORT_H_
diff --git a/url/url_parse.h b/url/url_parse.h
index 5c3643f..2170904 100644
--- a/url/url_parse.h
+++ b/url/url_parse.h
@@ -9,6 +9,7 @@
 
 #include "base/basictypes.h"
 #include "base/string16.h"
+#include "url/url_export.h"
 
 namespace url_parse {
 
@@ -80,7 +81,7 @@ inline Component MakeRange(int begin, int end) {
 //    else
 //      url_parse::ParsePathURL(url, url_len, &parsed);
 //
-struct Parsed {
+struct URL_EXPORT Parsed {
   // Identifies different components.
   enum ComponentType {
     SCHEME,
@@ -134,8 +135,7 @@ struct Parsed {
   //      *QUERY: 14                   15 <-
   //        *REF: 20                   20
   //
-  int CountCharactersBefore(ComponentType type,
-                            bool include_delimiter) const;
+  int CountCharactersBefore(ComponentType type, bool include_delimiter) const;
 
   // Scheme without the colon: "http://foo"/ would have a scheme of "http".
   // The length will be -1 if no scheme is specified ("foo.com"), or 0 if there
@@ -220,32 +220,36 @@ struct Parsed {
 // StandardURL is for when the scheme is known to be one that has an
 // authority (host) like "http". This function will not handle weird ones
 // like "about:" and "javascript:", or do the right thing for "file:" URLs.
-void ParseStandardURL(const char* url, int url_len, Parsed* parsed);
-void ParseStandardURL(const char16* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParseStandardURL(const char* url,
+                                 int url_len,
+                                 Parsed* parsed);
+URL_EXPORT void ParseStandardURL(const char16* url,
+                                 int url_len,
+                                 Parsed* parsed);
 
 // PathURL is for when the scheme is known not to have an authority (host)
 // section but that aren't file URLs either. The scheme is parsed, and
 // everything after the scheme is considered as the path. This is used for
 // things like "about:" and "javascript:"
-void ParsePathURL(const char* url, int url_len, Parsed* parsed);
-void ParsePathURL(const char16* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParsePathURL(const char* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParsePathURL(const char16* url, int url_len, Parsed* parsed);
 
 // FileURL is for file URLs. There are some special rules for interpreting
 // these.
-void ParseFileURL(const char* url, int url_len, Parsed* parsed);
-void ParseFileURL(const char16* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParseFileURL(const char* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParseFileURL(const char16* url, int url_len, Parsed* parsed);
 
 // Filesystem URLs are structured differently than other URLs.
-void ParseFileSystemURL(const char* url,
-                        int url_len,
-                        Parsed* parsed);
-void ParseFileSystemURL(const char16* url,
-                        int url_len,
-                        Parsed* parsed);
+URL_EXPORT void ParseFileSystemURL(const char* url,
+                                   int url_len,
+                                   Parsed* parsed);
+URL_EXPORT void ParseFileSystemURL(const char16* url,
+                                   int url_len,
+                                   Parsed* parsed);
 
 // MailtoURL is for mailto: urls. They are made up scheme,path,query
-void ParseMailtoURL(const char* url, int url_len, Parsed* parsed);
-void ParseMailtoURL(const char16* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParseMailtoURL(const char* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParseMailtoURL(const char16* url, int url_len, Parsed* parsed);
 
 // Helper functions -----------------------------------------------------------
 
@@ -269,27 +273,31 @@ void ParseMailtoURL(const char16* url, int url_len, Parsed* parsed);
 // end of the string).
 //
 // The 8-bit version requires UTF-8 encoding.
-bool ExtractScheme(const char* url, int url_len, Component* scheme);
-bool ExtractScheme(const char16* url, int url_len, Component* scheme);
+URL_EXPORT bool ExtractScheme(const char* url,
+                              int url_len,
+                              Component* scheme);
+URL_EXPORT bool ExtractScheme(const char16* url,
+                              int url_len,
+                              Component* scheme);
 
 // Returns true if ch is a character that terminates the authority segment
 // of a URL.
-bool IsAuthorityTerminator(char16 ch);
+URL_EXPORT bool IsAuthorityTerminator(char16 ch);
 
 // Does a best effort parse of input |spec|, in range |auth|. If a particular
 // component is not found, it will be set to invalid.
-void ParseAuthority(const char* spec,
-                    const Component& auth,
-                    Component* username,
-                    Component* password,
-                    Component* hostname,
-                    Component* port_num);
-void ParseAuthority(const char16* spec,
-                    const Component& auth,
-                    Component* username,
-                    Component* password,
-                    Component* hostname,
-                    Component* port_num);
+URL_EXPORT void ParseAuthority(const char* spec,
+                               const Component& auth,
+                               Component* username,
+                               Component* password,
+                               Component* hostname,
+                               Component* port_num);
+URL_EXPORT void ParseAuthority(const char16* spec,
+                               const Component& auth,
+                               Component* username,
+                               Component* password,
+                               Component* hostname,
+                               Component* port_num);
 
 // Computes the integer port value from the given port component. The port
 // component should have been identified by one of the init functions on
@@ -298,8 +306,8 @@ void ParseAuthority(const char16* spec,
 // The return value will be a positive integer between 0 and 64K, or one of
 // the two special values below.
 enum SpecialPort { PORT_UNSPECIFIED = -1, PORT_INVALID = -2 };
-int ParsePort(const char* url, const Component& port);
-int ParsePort(const char16* url, const Component& port);
+URL_EXPORT int ParsePort(const char* url, const Component& port);
+URL_EXPORT int ParsePort(const char16* url, const Component& port);
 
 // Extracts the range of the file name in the given url. The path must
 // already have been computed by the parse function, and the matching URL
@@ -311,12 +319,12 @@ int ParsePort(const char16* url, const Component& port);
 // following the last slash.
 //
 // The 8-bit version requires UTF-8 encoding.
-void ExtractFileName(const char* url,
-                     const Component& path,
-                     Component* file_name);
-void ExtractFileName(const char16* url,
-                     const Component& path,
-                     Component* file_name);
+URL_EXPORT void ExtractFileName(const char* url,
+                                const Component& path,
+                                Component* file_name);
+URL_EXPORT void ExtractFileName(const char16* url,
+                                const Component& path,
+                                Component* file_name);
 
 // Extract the first key/value from the range defined by |*query|. Updates
 // |*query| to start at the end of the extracted key/value pair. This is
@@ -333,14 +341,14 @@ void ExtractFileName(const char16* url,
 //
 // If no key/value are found |*key| and |*value| will be unchanged and it will
 // return false.
-bool ExtractQueryKeyValue(const char* url,
-                          Component* query,
-                          Component* key,
-                          Component* value);
-bool ExtractQueryKeyValue(const char16* url,
-                          Component* query,
-                          Component* key,
-                          Component* value);
+URL_EXPORT bool ExtractQueryKeyValue(const char* url,
+                                     Component* query,
+                                     Component* key,
+                                     Component* value);
+URL_EXPORT bool ExtractQueryKeyValue(const char16* url,
+                                     Component* query,
+                                     Component* key,
+                                     Component* value);
 
 }  // namespace url_parse
 
diff --git a/url/url_util.h b/url/url_util.h
index 419775c..a5f5176 100644
--- a/url/url_util.h
+++ b/url/url_util.h
@@ -9,6 +9,7 @@
 
 #include "base/string16.h"
 #include "url/url_canon.h"
+#include "url/url_export.h"
 #include "url/url_parse.h"
 
 namespace url_util {
@@ -26,13 +27,13 @@ namespace url_util {
 // "noop", unless Shutdown() was called in the mean time. This will also be a
 // "noop" if other calls to the library have forced an initialization
 // beforehand.
-void Initialize();
+URL_EXPORT void Initialize();
 
 // Cleanup is not required, except some strings may leak. For most user
 // applications, this is fine. If you're using it in a library that may get
 // loaded and unloaded, you'll want to unload to properly clean up your
 // library.
-void Shutdown();
+URL_EXPORT void Shutdown();
 
 // Schemes --------------------------------------------------------------------
 
@@ -40,7 +41,7 @@ void Shutdown();
 // schemes. This function is not threadsafe and can not be called concurrently
 // with any other url_util function. It will assert if the list of standard
 // schemes has been locked (see LockStandardSchemes).
-void AddStandardScheme(const char* new_scheme);
+URL_EXPORT void AddStandardScheme(const char* new_scheme);
 
 // Sets a flag to prevent future calls to AddStandardScheme from succeeding.
 //
@@ -54,7 +55,7 @@ void AddStandardScheme(const char* new_scheme);
 // We could have had AddStandardScheme use a lock instead, but that would add
 // some platform-specific dependencies we don't otherwise have now, and is
 // overkill considering the normal usage is so simple.
-void LockStandardSchemes();
+URL_EXPORT void LockStandardSchemes();
 
 // Locates the scheme in the given string and places it into |found_scheme|,
 // which may be NULL to indicate the caller does not care about the range.
@@ -62,14 +63,14 @@ void LockStandardSchemes();
 // Returns whether the given |compare| scheme matches the scheme found in the
 // input (if any). The |compare| scheme must be a valid canonical scheme or
 // the result of the comparison is undefined.
-bool FindAndCompareScheme(const char* str,
-                          int str_len,
-                          const char* compare,
-                          url_parse::Component* found_scheme);
-bool FindAndCompareScheme(const char16* str,
-                          int str_len,
-                          const char* compare,
-                          url_parse::Component* found_scheme);
+URL_EXPORT bool FindAndCompareScheme(const char* str,
+                                     int str_len,
+                                     const char* compare,
+                                     url_parse::Component* found_scheme);
+URL_EXPORT bool FindAndCompareScheme(const char16* str,
+                                     int str_len,
+                                     const char* compare,
+                                     url_parse::Component* found_scheme);
 inline bool FindAndCompareScheme(const std::string& str,
                                  const char* compare,
                                  url_parse::Component* found_scheme) {
@@ -85,10 +86,10 @@ inline bool FindAndCompareScheme(const string16& str,
 
 // Returns true if the given string represents a standard URL. This means that
 // either the scheme is in the list of known standard schemes.
-bool IsStandard(const char* spec,
-                const url_parse::Component& scheme);
-bool IsStandard(const char16* spec,
-                const url_parse::Component& scheme);
+URL_EXPORT bool IsStandard(const char* spec,
+                           const url_parse::Component& scheme);
+URL_EXPORT bool IsStandard(const char16* spec,
+                           const url_parse::Component& scheme);
 
 // TODO(brettw) remove this. This is a temporary compatibility hack to avoid
 // breaking the WebKit build when this version is synced via Chrome.
@@ -109,16 +110,16 @@ inline bool IsStandard(const char* spec, int spec_len,
 // Returns true if a valid URL was produced, false if not. On failure, the
 // output and parsed structures will still be filled and will be consistent,
 // but they will not represent a loadable URL.
-bool Canonicalize(const char* spec,
-                  int spec_len,
-                  url_canon::CharsetConverter* charset_converter,
-                  url_canon::CanonOutput* output,
-                  url_parse::Parsed* output_parsed);
-bool Canonicalize(const char16* spec,
-                  int spec_len,
-                  url_canon::CharsetConverter* charset_converter,
-                  url_canon::CanonOutput* output,
-                  url_parse::Parsed* output_parsed);
+URL_EXPORT bool Canonicalize(const char* spec,
+                             int spec_len,
+                             url_canon::CharsetConverter* charset_converter,
+                             url_canon::CanonOutput* output,
+                             url_parse::Parsed* output_parsed);
+URL_EXPORT bool Canonicalize(const char16* spec,
+                             int spec_len,
+                             url_canon::CharsetConverter* charset_converter,
+                             url_canon::CanonOutput* output,
+                             url_parse::Parsed* output_parsed);
 
 // Resolves a potentially relative URL relative to the given parsed base URL.
 // The base MUST be valid. The resulting canonical URL and parsed information
@@ -130,28 +131,28 @@ bool Canonicalize(const char16* spec,
 //
 // Returns true if the output is valid, false if the input could not produce
 // a valid URL.
-bool ResolveRelative(const char* base_spec,
-                     int base_spec_len,
-                     const url_parse::Parsed& base_parsed,
-                     const char* relative,
-                     int relative_length,
-                     url_canon::CharsetConverter* charset_converter,
-                     url_canon::CanonOutput* output,
-                     url_parse::Parsed* output_parsed);
-bool ResolveRelative(const char* base_spec,
-                     int base_spec_len,
-                     const url_parse::Parsed& base_parsed,
-                     const char16* relative,
-                     int relative_length,
-                     url_canon::CharsetConverter* charset_converter,
-                     url_canon::CanonOutput* output,
-                     url_parse::Parsed* output_parsed);
+URL_EXPORT bool ResolveRelative(const char* base_spec,
+                                int base_spec_len,
+                                const url_parse::Parsed& base_parsed,
+                                const char* relative,
+                                int relative_length,
+                                url_canon::CharsetConverter* charset_converter,
+                                url_canon::CanonOutput* output,
+                                url_parse::Parsed* output_parsed);
+URL_EXPORT bool ResolveRelative(const char* base_spec,
+                                int base_spec_len,
+                                const url_parse::Parsed& base_parsed,
+                                const char16* relative,
+                                int relative_length,
+                                url_canon::CharsetConverter* charset_converter,
+                                url_canon::CanonOutput* output,
+                                url_parse::Parsed* output_parsed);
 
 // Replaces components in the given VALID input url. The new canonical URL info
 // is written to output and out_parsed.
 //
 // Returns true if the resulting URL is valid.
-bool ReplaceComponents(
+URL_EXPORT bool ReplaceComponents(
     const char* spec,
     int spec_len,
     const url_parse::Parsed& parsed,
@@ -159,7 +160,7 @@ bool ReplaceComponents(
     url_canon::CharsetConverter* charset_converter,
     url_canon::CanonOutput* output,
     url_parse::Parsed* out_parsed);
-bool ReplaceComponents(
+URL_EXPORT bool ReplaceComponents(
     const char* spec,
     int spec_len,
     const url_parse::Parsed& parsed,
@@ -176,25 +177,25 @@ bool ReplaceComponents(
 //
 // The versions of this function that don't take a b_end assume that the b
 // string is NULL terminated.
-bool LowerCaseEqualsASCII(const char* a_begin,
-                          const char* a_end,
-                          const char* b);
-bool LowerCaseEqualsASCII(const char* a_begin,
-                          const char* a_end,
-                          const char* b_begin,
-                          const char* b_end);
-bool LowerCaseEqualsASCII(const char16* a_begin,
-                          const char16* a_end,
-                          const char* b);
+URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin,
+                                     const char* a_end,
+                                     const char* b);
+URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin,
+                                     const char* a_end,
+                                     const char* b_begin,
+                                     const char* b_end);
+URL_EXPORT bool LowerCaseEqualsASCII(const char16* a_begin,
+                                     const char16* a_end,
+                                     const char* b);
 
 // Unescapes the given string using URL escaping rules.
-void DecodeURLEscapeSequences(const char* input, int length,
-                              url_canon::CanonOutputW* output);
+URL_EXPORT void DecodeURLEscapeSequences(const char* input, int length,
+                                         url_canon::CanonOutputW* output);
 
 // Escapes the given string as defined by the JS method encodeURIComponent.  See
 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent
-void EncodeURIComponent(const char* input, int length,
-                        url_canon::CanonOutput* output);
+URL_EXPORT void EncodeURIComponent(const char* input, int length,
+                                   url_canon::CanonOutput* output);
 
 
 }  // namespace url_util