Add printing.dll to the component build.

R=rvargas,thestig
Review URL: http://codereview.chromium.org/7799003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99144 0039d316-1c4b-4281-b951-d872f2087c98

30 files changed, 146 insertions, 93 deletions

diff --git a/printing/backend/cups_helper.h b/printing/backend/cups_helper.h
index 1237468..ee1de9a 100644
--- a/printing/backend/cups_helper.h
+++ b/printing/backend/cups_helper.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -8,6 +8,8 @@
 
 #include <cups/cups.h>
 
+#include "printing/printing_export.h"
+
 class GURL;
 
 // These are helper functions for dealing with CUPS.
@@ -15,7 +17,7 @@ namespace printing {
 
 // Helper wrapper around http_t structure, with connection and cleanup
 // functionality.
-class HttpConnectionCUPS {
+class PRINTING_EXPORT HttpConnectionCUPS {
  public:
   explicit HttpConnectionCUPS(const GURL& print_server_url);
   ~HttpConnectionCUPS();
diff --git a/printing/backend/print_backend.h b/printing/backend/print_backend.h
index b6d0b91..c788499 100644
--- a/printing/backend/print_backend.h
+++ b/printing/backend/print_backend.h
@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "printing/printing_export.h"
 
 namespace base {
 class DictionaryValue;
@@ -19,7 +20,7 @@ class DictionaryValue;
 // This is the interface for platform-specific code for a print backend
 namespace printing {
 
-struct PrinterBasicInfo {
+struct PRINTING_EXPORT PrinterBasicInfo {
   PrinterBasicInfo();
   ~PrinterBasicInfo();
 
@@ -32,7 +33,7 @@ struct PrinterBasicInfo {
 
 typedef std::vector<PrinterBasicInfo> PrinterList;
 
-struct PrinterCapsAndDefaults {
+struct PRINTING_EXPORT PrinterCapsAndDefaults {
   PrinterCapsAndDefaults();
   ~PrinterCapsAndDefaults();
 
@@ -49,7 +50,8 @@ struct PrinterCapsAndDefaults {
 // print system specific. For example, CUPS is available on both Linux and Mac,
 // but not available on ChromeOS, etc. This design allows us to add more
 // functionality on some platforms, while reusing core (CUPS) functions.
-class PrintBackend : public base::RefCountedThreadSafe<PrintBackend> {
+class PRINTING_EXPORT PrintBackend
+    : public base::RefCountedThreadSafe<PrintBackend> {
  public:
   virtual ~PrintBackend();
 
diff --git a/printing/backend/print_backend_consts.h b/printing/backend/print_backend_consts.h
index 39555be..51210f6 100644
--- a/printing/backend/print_backend_consts.h
+++ b/printing/backend/print_backend_consts.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -6,11 +6,13 @@
 #define PRINTING_BACKEND_PRINT_BACKEND_CONSTS_H_
 #pragma once
 
-extern const char kLocationTagName[];
-extern const char kDriverNameTagName[];
-extern const char kCUPSPrintServerURL[];
-extern const char kCUPSBlocking[];
-extern const char kValueTrue[];
-extern const char kValueFalse[];
+#include "printing/printing_export.h"
+
+PRINTING_EXPORT extern const char kLocationTagName[];
+PRINTING_EXPORT extern const char kDriverNameTagName[];
+PRINTING_EXPORT extern const char kCUPSPrintServerURL[];
+PRINTING_EXPORT extern const char kCUPSBlocking[];
+PRINTING_EXPORT extern const char kValueTrue[];
+PRINTING_EXPORT extern const char kValueFalse[];
 
 #endif  // PRINTING_BACKEND_PRINT_BACKEND_CONSTS_H_
diff --git a/printing/backend/win_helper.h b/printing/backend/win_helper.h
index 28e57f7..a08e69a 100644
--- a/printing/backend/win_helper.h
+++ b/printing/backend/win_helper.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -12,6 +12,7 @@
 #include <xpsprint.h>
 
 #include "base/string16.h"
+#include "printing/printing_export.h"
 
 // These are helper functions for dealing with Windows Printing.
 namespace printing {
@@ -21,7 +22,7 @@ namespace printing {
 // this would mean having to add that to every binary that links with
 // printing.lib (which is a LOT of binaries). So choosing the GetProcAddress
 // route instead).
-class XPSModule {
+class PRINTING_EXPORT XPSModule {
  public:
   // All the other methods can ONLY be called after a successful call to Init.
   // Init can be called many times and by multiple threads.
@@ -60,7 +61,7 @@ class XPSModule {
 };
 
 // See comments in cc file explaining why we need this.
-class ScopedXPSInitializer {
+class PRINTING_EXPORT ScopedXPSInitializer {
  public:
   ScopedXPSInitializer();
   ~ScopedXPSInitializer();
@@ -74,7 +75,7 @@ class ScopedXPSInitializer {
 // Wrapper class to wrap the XPS Print APIs (these are different from the PTxxx
 // which deal with the XML Print Schema). This is needed because these
 // APIs are only available on Windows 7 and higher.
-class XPSPrintModule {
+class PRINTING_EXPORT XPSPrintModule {
  public:
   // All the other methods can ONLY be called after a successful call to Init.
   // Init can be called many times and by multiple threads.
diff --git a/printing/emf_win.h b/printing/emf_win.h
index f7e0ed5..f32e184 100644
--- a/printing/emf_win.h
+++ b/printing/emf_win.h
@@ -23,7 +23,7 @@ class Size;
 namespace printing {
 
 // Simple wrapper class that manage an EMF data stream and its virtual HDC.
-class Emf : public Metafile {
+class PRINTING_EXPORT Emf : public Metafile {
  public:
   class Record;
   class Enumerator;
@@ -118,7 +118,7 @@ struct Emf::EnumerationContext {
 
 // One EMF record. It keeps pointers to the EMF buffer held by Emf::emf_.
 // The entries become invalid once Emf::CloseEmf() is called.
-class Emf::Record {
+class PRINTING_EXPORT Emf::Record {
  public:
   // Plays the record.
   bool Play() const;
@@ -144,7 +144,7 @@ class Emf::Record {
 // Retrieves individual records out of a Emf buffer. The main use is to skip
 // over records that are unsupported on a specific printer or to play back
 // only a part of an EMF buffer.
-class Emf::Enumerator {
+class PRINTING_EXPORT Emf::Enumerator {
  public:
   // Iterator type used for iterating the records.
   typedef std::vector<Record>::const_iterator const_iterator;
diff --git a/printing/image.h b/printing/image.h
index 3bed218..e34c2c24 100644
--- a/printing/image.h
+++ b/printing/image.h
@@ -10,6 +10,7 @@
 
 #include "base/basictypes.h"
 #include "base/logging.h"
+#include "printing/printing_export.h"
 #include "ui/gfx/size.h"
 
 class FilePath;
@@ -20,7 +21,7 @@ class Metafile;
 
 // Lightweight raw-bitmap management. The image, once initialized, is immutable.
 // The main purpose is testing image contents.
-class Image {
+class PRINTING_EXPORT Image {
  public:
   // Creates the image from the given file on disk.  Uses extension to
   // defer file type. PNG and EMF (on Windows) currently supported.
diff --git a/printing/metafile.h b/printing/metafile.h
index 84c0556..99eb185 100644
--- a/printing/metafile.h
+++ b/printing/metafile.h
@@ -7,6 +7,7 @@
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
+#include "printing/printing_export.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(OS_WIN)
@@ -37,7 +38,7 @@ namespace printing {
 
 // This class creates a graphics context that renders into a data stream
 // (usually PDF or EMF).
-class Metafile {
+class PRINTING_EXPORT Metafile {
  public:
   virtual ~Metafile() {}
 
diff --git a/printing/metafile_skia_wrapper.h b/printing/metafile_skia_wrapper.h
index 127cd1b..40e26e8 100644
--- a/printing/metafile_skia_wrapper.h
+++ b/printing/metafile_skia_wrapper.h
@@ -5,6 +5,7 @@
 #ifndef PRINTING_METAFILE_SKIA_WRAPPER_H_
 #define PRINTING_METAFILE_SKIA_WRAPPER_H_
 
+#include "printing/printing_export.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 class SkCanvas;
@@ -17,7 +18,7 @@ class Metafile;
 // on an SkCanvas.  The ownership of the metafile is not affected and it
 // is the caller's responsibility to ensure that the metafile remains valid
 // as long as the canvas.
-class MetafileSkiaWrapper : public SkRefCnt {
+class PRINTING_EXPORT MetafileSkiaWrapper : public SkRefCnt {
  public:
   static void SetMetafileOnCanvas(SkCanvas* canvas, Metafile* metafile);
 
diff --git a/printing/page_number.h b/printing/page_number.h
index 528a41d..a51ad1e 100644
--- a/printing/page_number.h
+++ b/printing/page_number.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -15,7 +15,7 @@ class PrintSettings;
 
 // Represents a page series following the array of page ranges defined in a
 // PrintSettings.
-class PageNumber {
+class PRINTING_EXPORT PageNumber {
  public:
   // Initializes the page to the first page in the settings's range or 0.
   PageNumber(const PrintSettings& settings, int document_page_count);
diff --git a/printing/page_range.h b/printing/page_range.h
index 1237d5d..1a68c22 100644
--- a/printing/page_range.h
+++ b/printing/page_range.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -7,6 +7,8 @@
 
 #include <vector>
 
+#include "printing_export.h"
+
 namespace printing {
 
 struct PageRange;
@@ -14,7 +16,7 @@ struct PageRange;
 typedef std::vector<PageRange> PageRanges;
 
 // Print range is inclusive. To select one page, set from == to.
-struct PageRange {
+struct PRINTING_EXPORT PageRange {
   int from;
   int to;
 
diff --git a/printing/page_setup.h b/printing/page_setup.h
index 0ca1f789..7f33893 100644
--- a/printing/page_setup.h
+++ b/printing/page_setup.h
@@ -5,12 +5,13 @@
 #ifndef PRINTING_PAGE_SETUP_H_
 #define PRINTING_PAGE_SETUP_H_
 
+#include "printing/printing_export.h"
 #include "ui/gfx/rect.h"
 
 namespace printing {
 
 // Margins for a page setup.
-class PageMargins {
+class PRINTING_EXPORT PageMargins {
  public:
   PageMargins();
 
@@ -32,7 +33,7 @@ class PageMargins {
 
 // Settings that define the size and printable areas of a page. Unit is
 // unspecified.
-class PageSetup {
+class PRINTING_EXPORT PageSetup {
  public:
   PageSetup();
   ~PageSetup();
diff --git a/printing/pdf_metafile_cairo_linux.h b/printing/pdf_metafile_cairo_linux.h
index 6f07ae0..28c0698 100644
--- a/printing/pdf_metafile_cairo_linux.h
+++ b/printing/pdf_metafile_cairo_linux.h
@@ -23,7 +23,7 @@ namespace printing {
 
 // This class uses Cairo graphics library to generate PDF stream and stores
 // rendering results in a string buffer.
-class PdfMetafileCairo : public Metafile {
+class PRINTING_EXPORT PdfMetafileCairo : public Metafile {
  public:
   PdfMetafileCairo();
   virtual ~PdfMetafileCairo();
diff --git a/printing/pdf_metafile_cg_mac.cc b/printing/pdf_metafile_cg_mac.cc
index 1cf7f7b..5fc8ba3 100644
--- a/printing/pdf_metafile_cg_mac.cc
+++ b/printing/pdf_metafile_cg_mac.cc
@@ -52,7 +52,7 @@ PdfMetafileCg::PdfMetafileCg()
 }
 
 PdfMetafileCg::~PdfMetafileCg() {
-  DCHECK(CalledOnValidThread());
+  DCHECK(thread_checker_.CalledOnValidThread());
   if (pdf_doc_ && thread_pdf_docs.Get()) {
     // Transfer ownership to the pool.
     CFSetAddValue(thread_pdf_docs.Get(), pdf_doc_);
diff --git a/printing/pdf_metafile_cg_mac.h b/printing/pdf_metafile_cg_mac.h
index 5a7f56d..23c00c2 100644
--- a/printing/pdf_metafile_cg_mac.h
+++ b/printing/pdf_metafile_cg_mac.h
@@ -25,7 +25,7 @@ class Point;
 namespace printing {
 
 // This class creates a graphics context that renders into a PDF data stream.
-class PdfMetafileCg : public Metafile, public base::ThreadChecker {
+class PRINTING_EXPORT PdfMetafileCg : public Metafile {
  public:
   PdfMetafileCg();
   virtual ~PdfMetafileCg();
@@ -69,6 +69,8 @@ class PdfMetafileCg : public Metafile, public base::ThreadChecker {
   // Returns a CGPDFDocumentRef version of pdf_data_.
   CGPDFDocumentRef GetPDFDocument() const;
 
+  base::ThreadChecker thread_checker_;
+
   // Context for rendering to the pdf.
   base::mac::ScopedCFTypeRef<CGContextRef> context_;
 
diff --git a/printing/pdf_metafile_skia.h b/printing/pdf_metafile_skia.h
index d4ce56f..4a20c17 100644
--- a/printing/pdf_metafile_skia.h
+++ b/printing/pdf_metafile_skia.h
@@ -20,7 +20,7 @@ namespace printing {
 struct PdfMetafileSkiaData;
 
 // This class uses Skia graphics library to generate a PDF document.
-class PdfMetafileSkia : public Metafile {
+class PRINTING_EXPORT PdfMetafileSkia : public Metafile {
  public:
   PdfMetafileSkia();
   virtual ~PdfMetafileSkia();
diff --git a/printing/print_job_constants.h b/printing/print_job_constants.h
index 7698599..7240340 100644
--- a/printing/print_job_constants.h
+++ b/printing/print_job_constants.h
@@ -5,45 +5,47 @@
 #ifndef PRINTING_PRINT_JOB_CONSTANTS_H_
 #define PRINTING_PRINT_JOB_CONSTANTS_H_
 
+#include "printing/printing_export.h"
+
 namespace printing {
 
-extern const char kIsFirstRequest[];
-extern const char kPreviewRequestID[];
-extern const char kPreviewUIAddr[];
-extern const char kSettingCloudPrintId[];
-extern const char kSettingCollate[];
-extern const char kSettingColor[];
-extern const char kSettingContentHeight[];
-extern const char kSettingContentWidth[];
-extern const char kSettingCopies[];
-extern const char kSettingDefaultMarginsSelected[];
-extern const char kSettingDeviceName[];
-extern const char kSettingDuplexMode[];
-extern const char kSettingGenerateDraftData[];
-extern const char kSettingHeaderFooterEnabled[];
-extern const int kSettingHeaderFooterCharacterSpacing;
-extern const char kSettingHeaderFooterFontFamilyName[];
-extern const char kSettingHeaderFooterFontName[];
-extern const int kSettingHeaderFooterFontSize;
-extern const float kSettingHeaderFooterHorizontalRegions;
-extern const float kSettingHeaderFooterInterstice;
-extern const char kSettingHeaderFooterDate[];
-extern const char kSettingHeaderFooterTitle[];
-extern const char kSettingHeaderFooterURL[];
-extern const char kSettingLandscape[];
-extern const char kSettingMarginBottom[];
-extern const char kSettingMarginLeft[];
-extern const char kSettingMarginRight[];
-extern const char kSettingMarginTop[];
-extern const char kSettingMargins[];
-extern const char kSettingPageRange[];
-extern const char kSettingPageRangeFrom[];
-extern const char kSettingPageRangeTo[];
-extern const char kSettingPrinterName[];
-extern const char kSettingPrintToPDF[];
+PRINTING_EXPORT extern const char kIsFirstRequest[];
+PRINTING_EXPORT extern const char kPreviewRequestID[];
+PRINTING_EXPORT extern const char kPreviewUIAddr[];
+PRINTING_EXPORT extern const char kSettingCloudPrintId[];
+PRINTING_EXPORT extern const char kSettingCollate[];
+PRINTING_EXPORT extern const char kSettingColor[];
+PRINTING_EXPORT extern const char kSettingContentHeight[];
+PRINTING_EXPORT extern const char kSettingContentWidth[];
+PRINTING_EXPORT extern const char kSettingCopies[];
+PRINTING_EXPORT extern const char kSettingDefaultMarginsSelected[];
+PRINTING_EXPORT extern const char kSettingDeviceName[];
+PRINTING_EXPORT extern const char kSettingDuplexMode[];
+PRINTING_EXPORT extern const char kSettingGenerateDraftData[];
+PRINTING_EXPORT extern const char kSettingHeaderFooterEnabled[];
+PRINTING_EXPORT extern const int kSettingHeaderFooterCharacterSpacing;
+PRINTING_EXPORT extern const char kSettingHeaderFooterFontFamilyName[];
+PRINTING_EXPORT extern const char kSettingHeaderFooterFontName[];
+PRINTING_EXPORT extern const int kSettingHeaderFooterFontSize;
+PRINTING_EXPORT extern const float kSettingHeaderFooterHorizontalRegions;
+PRINTING_EXPORT extern const float kSettingHeaderFooterInterstice;
+PRINTING_EXPORT extern const char kSettingHeaderFooterDate[];
+PRINTING_EXPORT extern const char kSettingHeaderFooterTitle[];
+PRINTING_EXPORT extern const char kSettingHeaderFooterURL[];
+PRINTING_EXPORT extern const char kSettingLandscape[];
+PRINTING_EXPORT extern const char kSettingMarginBottom[];
+PRINTING_EXPORT extern const char kSettingMarginLeft[];
+PRINTING_EXPORT extern const char kSettingMarginRight[];
+PRINTING_EXPORT extern const char kSettingMarginTop[];
+PRINTING_EXPORT extern const char kSettingMargins[];
+PRINTING_EXPORT extern const char kSettingPageRange[];
+PRINTING_EXPORT extern const char kSettingPageRangeFrom[];
+PRINTING_EXPORT extern const char kSettingPageRangeTo[];
+PRINTING_EXPORT extern const char kSettingPrinterName[];
+PRINTING_EXPORT extern const char kSettingPrintToPDF[];
 
-extern const int FIRST_PAGE_INDEX;
-extern const int COMPLETE_PREVIEW_DOCUMENT_INDEX;
+PRINTING_EXPORT extern const int FIRST_PAGE_INDEX;
+PRINTING_EXPORT extern const int COMPLETE_PREVIEW_DOCUMENT_INDEX;
 
 // Print job duplex mode values.
 enum DuplexMode {
diff --git a/printing/print_settings.h b/printing/print_settings.h
index 8fea6dd..23de5b7 100644
--- a/printing/print_settings.h
+++ b/printing/print_settings.h
@@ -16,7 +16,7 @@
 namespace printing {
 
 // OS-independent print settings.
-class PrintSettings {
+class PRINTING_EXPORT PrintSettings {
  public:
   PrintSettings();
   ~PrintSettings();
diff --git a/printing/print_settings_initializer.h b/printing/print_settings_initializer.h
index de2e3cd..4897be8 100644
--- a/printing/print_settings_initializer.h
+++ b/printing/print_settings_initializer.h
@@ -7,6 +7,7 @@
 
 #include "base/basictypes.h"
 #include "base/logging.h"
+#include "printing/printing_export.h"
 
 namespace base {
 class DictionaryValue;
@@ -18,7 +19,7 @@ class PrintSettings;
 
 // Initializes the header footer strings in the PrintSettings object from the
 // provided |job_settings|.
-class PrintSettingsInitializer {
+class PRINTING_EXPORT PrintSettingsInitializer {
  public:
   static void InitHeaderFooterStrings(
       const base::DictionaryValue& job_settings,
diff --git a/printing/print_settings_initializer_gtk.h b/printing/print_settings_initializer_gtk.h
index 7ac252b..5807500 100644
--- a/printing/print_settings_initializer_gtk.h
+++ b/printing/print_settings_initializer_gtk.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -16,7 +16,7 @@ namespace printing {
 class PrintSettings;
 
 // Initializes a PrintSettings object from the provided Gtk printer objects.
-class PrintSettingsInitializerGtk {
+class PRINTING_EXPORT PrintSettingsInitializerGtk {
  public:
   static void InitPrintSettings(GtkPrintSettings* settings,
                                 GtkPageSetup* page_setup,
diff --git a/printing/print_settings_initializer_mac.h b/printing/print_settings_initializer_mac.h
index 75307e1..2b79251 100644
--- a/printing/print_settings_initializer_mac.h
+++ b/printing/print_settings_initializer_mac.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -15,7 +15,7 @@ namespace printing {
 class PrintSettings;
 
 // Initializes a PrintSettings object from the provided device context.
-class PrintSettingsInitializerMac {
+class PRINTING_EXPORT PrintSettingsInitializerMac {
  public:
   static void InitPrintSettings(PMPrinter printer,
                                 PMPageFormat page_format,
diff --git a/printing/print_settings_initializer_win.h b/printing/print_settings_initializer_win.h
index 9ed68e9..720abae 100644
--- a/printing/print_settings_initializer_win.h
+++ b/printing/print_settings_initializer_win.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -18,7 +18,7 @@ namespace printing {
 class PrintSettings;
 
 // Initializes a PrintSettings object from the provided device context.
-class PrintSettingsInitializerWin {
+class PRINTING_EXPORT PrintSettingsInitializerWin {
  public:
   static void InitPrintSettings(HDC hdc,
                                 const DEVMODE& dev_mode,
diff --git a/printing/printed_document.h b/printing/printed_document.h
index eb08ae3..67e7f6d 100644
--- a/printing/printed_document.h
+++ b/printing/printed_document.h
@@ -35,7 +35,8 @@ class PrintingContext;
 // will have write access. Sensible functions are protected by a lock.
 // Warning: Once a page is loaded, it cannot be replaced. Pages may be discarded
 // under low memory conditions.
-class PrintedDocument : public base::RefCountedThreadSafe<PrintedDocument> {
+class PRINTING_EXPORT PrintedDocument
+    : public base::RefCountedThreadSafe<PrintedDocument> {
  public:
   // The cookie shall be unique and has a specific relationship with its
   // originating source and settings.
diff --git a/printing/printed_page.h b/printing/printed_page.h
index 3771457..fc0d3ba 100644
--- a/printing/printed_page.h
+++ b/printing/printed_page.h
@@ -19,7 +19,8 @@ namespace printing {
 // Note: May be accessed from many threads at the same time. This is an non
 // issue since this object is immutable. The reason is that a page may be
 // printed and be displayed at the same time.
-class PrintedPage : public base::RefCountedThreadSafe<PrintedPage> {
+class PRINTING_EXPORT PrintedPage
+    : public base::RefCountedThreadSafe<PrintedPage> {
  public:
   PrintedPage(int page_number,
               Metafile* metafile,
diff --git a/printing/printing.gyp b/printing/printing.gyp
index 0b13a00..256108e 100644
--- a/printing/printing.gyp
+++ b/printing/printing.gyp
@@ -9,7 +9,7 @@
   'targets': [
     {
       'target_name': 'printing',
-      'type': 'static_library',
+      'type': '<(component)',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
@@ -18,7 +18,10 @@
         '../skia/skia.gyp:skia',
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
-        '../ui/ui.gyp:ui',  # Only required for Font support.
+        '../ui/ui.gyp:ui',
+      ],
+      'defines': [
+        'PRINTING_IMPLEMENTATION',
       ],
       'include_dirs': [
         '..',
@@ -166,6 +169,7 @@
         'printing',
         '../testing/gtest.gyp:gtest',
         '../base/base.gyp:test_support_base',
+        '../ui/ui.gyp:ui',
       ],
       'sources': [
         'emf_win_unittest.cc',
diff --git a/printing/printing_context.h b/printing/printing_context.h
index c7184e7..46e9f57 100644
--- a/printing/printing_context.h
+++ b/printing/printing_context.h
@@ -23,7 +23,7 @@ namespace printing {
 // user selected printing context. This includes the OS-dependent UI to ask the
 // user about the print settings. Concrete implementations directly talk to the
 // printer and manage the document and page breaks.
-class PrintingContext {
+class PRINTING_EXPORT PrintingContext {
  public:
   // Tri-state result for user behavior-dependent functions.
   enum Result {
diff --git a/printing/printing_context_cairo.h b/printing/printing_context_cairo.h
index 20c3b8c..088f01b 100644
--- a/printing/printing_context_cairo.h
+++ b/printing/printing_context_cairo.h
@@ -18,7 +18,7 @@ namespace printing {
 class Metafile;
 class PrintDialogGtkInterface;
 
-class PrintingContextCairo : public PrintingContext {
+class PRINTING_EXPORT PrintingContextCairo : public PrintingContext {
  public:
   explicit PrintingContextCairo(const std::string& app_locale);
   virtual ~PrintingContextCairo();
diff --git a/printing/printing_context_mac.h b/printing/printing_context_mac.h
index 655ef6a..e7e6342 100644
--- a/printing/printing_context_mac.h
+++ b/printing/printing_context_mac.h
@@ -19,7 +19,7 @@ class NSPrintInfo;
 
 namespace printing {
 
-class PrintingContextMac : public PrintingContext {
+class PRINTING_EXPORT PrintingContextMac : public PrintingContext {
  public:
   explicit PrintingContextMac(const std::string& app_locale);
   virtual ~PrintingContextMac();
diff --git a/printing/printing_context_win.h b/printing/printing_context_win.h
index c830736..feee8f6 100644
--- a/printing/printing_context_win.h
+++ b/printing/printing_context_win.h
@@ -17,7 +17,7 @@
 
 namespace printing {
 
-class PrintingContextWin : public PrintingContext {
+class PRINTING_EXPORT PrintingContextWin : public PrintingContext {
  public:
   explicit PrintingContextWin(const std::string& app_locale);
   ~PrintingContextWin();
@@ -40,7 +40,7 @@ class PrintingContextWin : public PrintingContext {
   virtual void ReleaseContext();
   virtual gfx::NativeDrawingContext context() const;
 
-#if defined(UNIT_TEST)
+#if defined(UNIT_TEST) || defined(PRINTING_IMPLEMENTATION)
   // Sets a fake PrintDlgEx function pointer in tests.
   void SetPrintDialog(HRESULT (__stdcall *print_dialog_func)(LPPRINTDLGEX)) {
     print_dialog_func_ = print_dialog_func;
diff --git a/printing/printing_export.h b/printing/printing_export.h
new file mode 100644
index 0000000..2365c01
--- /dev/null
+++ b/printing/printing_export.h
@@ -0,0 +1,26 @@
+// Copyright (c) 2011 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 PRINTING_PRINTING_EXPORT_H_
+#define PRINTING_PRINTING_EXPORT_H_
+#pragma once
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(PRINTING_IMPLEMENTATION)
+#define PRINTING_EXPORT __declspec(dllexport)
+#else
+#define PRINTING_EXPORT __declspec(dllimport)
+#endif  // defined(PRINTING_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#define PRINTING_EXPORT __attribute__((visibility("default")))
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define PRINTING_EXPORT
+#endif
+
+#endif  // PRINTING_PRINTING_EXPORT_H_
diff --git a/printing/units.h b/printing/units.h
index bd6d67a..43f68ee 100644
--- a/printing/units.h
+++ b/printing/units.h
@@ -1,10 +1,12 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 PRINTING_UNITS_H_
 #define PRINTING_UNITS_H_
 
+#include "printing/printing_export.h"
+
 namespace printing {
 
 // Length of a thousanth of inches in 0.01mm unit.
@@ -19,29 +21,30 @@ const int kPointsPerInch = 72;
 const int kPixelsPerInch = 96;
 
 // Converts from one unit system to another using integer arithmetics.
-int ConvertUnit(int value, int old_unit, int new_unit);
+PRINTING_EXPORT int ConvertUnit(int value, int old_unit, int new_unit);
 
 // Converts from one unit system to another using doubles.
-double ConvertUnitDouble(double value, double old_unit, double new_unit);
+PRINTING_EXPORT double ConvertUnitDouble(double value, double old_unit,
+                                         double new_unit);
 
 // Converts from 0.001 inch unit to 0.00001 meter.
-int ConvertMilliInchToHundredThousanthMeter(int milli_inch);
+PRINTING_EXPORT int ConvertMilliInchToHundredThousanthMeter(int milli_inch);
 
 // Converts from 0.00001 meter unit to 0.001 inch.
-int ConvertHundredThousanthMeterToMilliInch(int cmm);
+PRINTING_EXPORT int ConvertHundredThousanthMeterToMilliInch(int cmm);
 
 // Converts from 1 pixel to 1 point using integers.
-int ConvertPixelsToPoint(int pixels);
+PRINTING_EXPORT int ConvertPixelsToPoint(int pixels);
 
 // Converts from 1 pixel to 1 point using doubles.
-double ConvertPixelsToPointDouble(double pixels);
+PRINTING_EXPORT double ConvertPixelsToPointDouble(double pixels);
 
 // Converts from 1 point to 1 pixel using doubles.
 double ConvertPointsToPixelDouble(double points);
 
 // Splits the horizontal width equally into segments with an interstice
 // between each segment. Returns the width of a segment.
-double GetHeaderFooterSegmentWidth(double page_width);
+PRINTING_EXPORT double GetHeaderFooterSegmentWidth(double page_width);
 
 }  // namespace printing