Move webkitplatformsupport_impl and related from glue to child

Picking up Ananta's change.

Move the webkitplatformsupport_impl.cc/.h files out of webkit\glue to
webkit\child.

This requires moving the following files out of webkit\glue to webkit\child:
1. weburlloader_impl.cc/.h
2. weburlrequest_extradata_impl.cc/.h
3. websocketstreamhandle_impl.cc/.h
4. weburlresponse_extradata_impl.cc/.h
5. websocketstreamhandle_delegate.h
6. ftp_directory_listing_response_delegate.cc/.h
7. multipart_response_delegate.cc/.h
8. multipart_response_delegate_unittest.cc
9. resource_loader_bridge.cc/.h

The following files have been moved to webkit\common:
2. resource_type.cc/.h

Move MemoryUsageKB out of webkit_glue.cc/h to webkit/child/webkit_child_helpers.

I added an include rule to content\common\DEPS to allow including
webkit\child\websocketstreamhandle_delegate.h. This will be removed in a
followup.

TBR=jam@chromium.org, jamesr@chromium.org, jschuh@chromium.org

BUG=237249

Review URL: https://codereview.chromium.org/19673002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@212927 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 232 insertions, 0 deletions

diff --git a/webkit/child/resource_loader_bridge.h b/webkit/child/resource_loader_bridge.h
new file mode 100644
index 0000000..9d51b62
--- /dev/null
+++ b/webkit/child/resource_loader_bridge.h
@@ -0,0 +1,232 @@
+// Copyright (c) 2012 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.
+//
+// The intent of this file is to provide a type-neutral abstraction between
+// Chrome and WebKit for resource loading. This pure-virtual interface is
+// implemented by the embedder.
+//
+// One of these objects will be created by WebKit for each request. WebKit
+// will own the pointer to the bridge, and will delete it when the request is
+// no longer needed.
+//
+// In turn, the bridge's owner on the WebKit end will implement the Peer
+// interface, which we will use to communicate notifications back.
+
+#ifndef WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_
+#define WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_
+
+#include <utility>
+
+#include "build/build_config.h"
+#if defined(OS_POSIX)
+#include "base/file_descriptor_posix.h"
+#endif
+#include "base/memory/ref_counted.h"
+#include "base/platform_file.h"
+#include "base/values.h"
+#include "net/base/request_priority.h"
+#include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "url/gurl.h"
+#include "webkit/child/webkit_child_export.h"
+#include "webkit/common/resource_response_info.h"
+#include "webkit/common/resource_type.h"
+
+namespace webkit_glue {
+class ResourceRequestBody;
+
+class ResourceLoaderBridge {
+ public:
+  // Structure used when calling
+  // WebKitPlatformSupportImpl::CreateResourceLoader().
+  struct WEBKIT_CHILD_EXPORT RequestInfo {
+    RequestInfo();
+    ~RequestInfo();
+
+    // HTTP-style method name (e.g., "GET" or "POST").
+    std::string method;
+
+    // Absolute URL encoded in ASCII per the rules of RFC-2396.
+    GURL url;
+
+    // URL of the document in the top-level window, which may be checked by the
+    // third-party cookie blocking policy.
+    GURL first_party_for_cookies;
+
+    // Optional parameter, a URL with similar constraints in how it must be
+    // encoded as the url member.
+    GURL referrer;
+
+    // The referrer policy that applies to the referrer.
+    WebKit::WebReferrerPolicy referrer_policy;
+
+    // For HTTP(S) requests, the headers parameter can be a \r\n-delimited and
+    // \r\n-terminated list of MIME headers.  They should be ASCII-encoded using
+    // the standard MIME header encoding rules.  The headers parameter can also
+    // be null if no extra request headers need to be set.
+    std::string headers;
+
+    // Composed of the values defined in url_request_load_flags.h.
+    int load_flags;
+
+    // Process id of the process making the request.
+    int requestor_pid;
+
+    // Indicates if the current request is the main frame load, a sub-frame
+    // load, or a sub objects load.
+    ResourceType::Type request_type;
+
+    // Indicates the priority of this request, as determined by WebKit.
+    net::RequestPriority priority;
+
+    // Used for plugin to browser requests.
+    uint32 request_context;
+
+    // Identifies what appcache host this request is associated with.
+    int appcache_host_id;
+
+    // Used to associated the bridge with a frame's network context.
+    int routing_id;
+
+    // If true, then the response body will be downloaded to a file and the
+    // path to that file will be provided in ResponseInfo::download_file_path.
+    bool download_to_file;
+
+    // True if the request was user initiated.
+    bool has_user_gesture;
+
+    // Extra data associated with this request.  We do not own this pointer.
+    WebKit::WebURLRequest::ExtraData* extra_data;
+
+   private:
+    DISALLOW_COPY_AND_ASSIGN(RequestInfo);
+  };
+
+  // See the SyncLoad method declared below.  (The name of this struct is not
+  // suffixed with "Info" because it also contains the response data.)
+  struct SyncLoadResponse : ResourceResponseInfo {
+    WEBKIT_CHILD_EXPORT SyncLoadResponse();
+    WEBKIT_CHILD_EXPORT ~SyncLoadResponse();
+
+    // The response error code.
+    int error_code;
+
+    // The final URL of the response.  This may differ from the request URL in
+    // the case of a server redirect.
+    GURL url;
+
+    // The response data.
+    std::string data;
+  };
+
+  // Generated by the bridge. This is implemented by our custom resource loader
+  // within webkit. The Peer and it's bridge should have identical lifetimes
+  // as they represent each end of a communication channel.
+  //
+  // These callbacks mirror net::URLRequest::Delegate and the order and
+  // conditions in which they will be called are identical. See url_request.h
+  // for more information.
+  class Peer {
+   public:
+    // Called as upload progress is made.
+    // note: only for requests with LOAD_ENABLE_UPLOAD_PROGRESS set
+    virtual void OnUploadProgress(uint64 position, uint64 size) = 0;
+
+    // Called when a redirect occurs.  The implementation may return false to
+    // suppress the redirect.  The given ResponseInfo provides complete
+    // information about the redirect, and new_url is the URL that will be
+    // loaded if this method returns true.  If this method returns true, the
+    // output parameter *has_new_first_party_for_cookies indicates whether the
+    // output parameter *new_first_party_for_cookies contains the new URL that
+    // should be consulted for the third-party cookie blocking policy.
+    virtual bool OnReceivedRedirect(const GURL& new_url,
+                                    const ResourceResponseInfo& info,
+                                    bool* has_new_first_party_for_cookies,
+                                    GURL* new_first_party_for_cookies) = 0;
+
+    // Called when response headers are available (after all redirects have
+    // been followed).
+    virtual void OnReceivedResponse(const ResourceResponseInfo& info) = 0;
+
+    // Called when a chunk of response data is downloaded.  This method may be
+    // called multiple times or not at all if an error occurs.  This method is
+    // only called if RequestInfo::download_to_file was set to true, and in
+    // that case, OnReceivedData will not be called.
+    virtual void OnDownloadedData(int len) = 0;
+
+    // Called when a chunk of response data is available. This method may
+    // be called multiple times or not at all if an error occurs.
+    // The encoded_data_length is the length of the encoded data transferred
+    // over the network, which could be different from data length (e.g. for
+    // gzipped content), or -1 if if unknown.
+    virtual void OnReceivedData(const char* data,
+                                int data_length,
+                                int encoded_data_length) = 0;
+
+    // Called when metadata generated by the renderer is retrieved from the
+    // cache. This method may be called zero or one times.
+    virtual void OnReceivedCachedMetadata(const char* data, int len) { }
+
+    // Called when the response is complete.  This method signals completion of
+    // the resource load.
+    virtual void OnCompletedRequest(
+        int error_code,
+        bool was_ignored_by_handler,
+        const std::string& security_info,
+        const base::TimeTicks& completion_time) = 0;
+
+   protected:
+    virtual ~Peer() {}
+  };
+
+  // use WebKitPlatformSupportImpl::CreateResourceLoader() for construction, but
+  // anybody can delete at any time, INCLUDING during processing of callbacks.
+  WEBKIT_CHILD_EXPORT virtual ~ResourceLoaderBridge();
+
+  // Call this method before calling Start() to set the request body.
+  // May only be used with HTTP(S) POST requests.
+  virtual void SetRequestBody(ResourceRequestBody* request_body) = 0;
+
+  // Call this method to initiate the request.  If this method succeeds, then
+  // the peer's methods will be called asynchronously to report various events.
+  virtual bool Start(Peer* peer) = 0;
+
+  // Call this method to cancel a request that is in progress.  This method
+  // causes the request to immediately transition into the 'done' state. The
+  // OnCompletedRequest method will be called asynchronously; this assumes
+  // the peer is still valid.
+  virtual void Cancel() = 0;
+
+  // Call this method to suspend or resume a load that is in progress.  This
+  // method may only be called after a successful call to the Start method.
+  virtual void SetDefersLoading(bool value) = 0;
+
+  // Call this method when the priority of the requested resource changes after
+  // Start() has been called.  This method may only be called after a successful
+  // call to the Start method.
+  virtual void DidChangePriority(net::RequestPriority new_priority) = 0;
+
+  // Call this method to load the resource synchronously (i.e., in one shot).
+  // This is an alternative to the Start method.  Be warned that this method
+  // will block the calling thread until the resource is fully downloaded or an
+  // error occurs.  It could block the calling thread for a long time, so only
+  // use this if you really need it!  There is also no way for the caller to
+  // interrupt this method.  Errors are reported via the status field of the
+  // response parameter.
+  virtual void SyncLoad(SyncLoadResponse* response) = 0;
+
+ protected:
+  // Construction must go through
+  // WebKitPlatformSupportImpl::CreateResourceLoader()
+  // For HTTP(S) POST requests, the AppendDataToUpload and AppendFileToUpload
+  // methods may be called to construct the body of the request.
+  WEBKIT_CHILD_EXPORT ResourceLoaderBridge();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge);
+};
+
+}  // namespace webkit_glue
+
+#endif  // WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_