[headless] Embed pak file into binary.

ui/base/resource/resource_bundle.h

 // 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.
 
 #ifndef UI_BASE_RESOURCE_RESOURCE_BUNDLE_H_
 #define UI_BASE_RESOURCE_RESOURCE_BUNDLE_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 128 matching lines @@
 
   // Initialize the ResourceBundle using given data pack path for testing.
   static void InitSharedInstanceWithPakPath(const base::FilePath& path);
 
   // Delete the ResourceBundle for this process if it exists.
   static void CleanupSharedInstance();
 
   // Returns true after the global resource loader instance has been created.
   static bool HasSharedInstance();
 
+  // Initialize the ResourceBundle using data pack from given buffer.
   // Return the global resource loader instance.
   static ResourceBundle& GetSharedInstance();
 
   // Check if the .pak for the given locale exists.
   bool LocaleDataPakExists(const std::string& locale);
 
   // Registers additional data pack files with this ResourceBundle.  When
   // looking for a DataResource, we will search these files after searching the
   // main module. |path| should be the complete path to the pack file if known
   // or just the pack file name otherwise (the delegate may optionally override
   // this value). |scale_factor| is the scale of images in this resource pak
   // relative to the images in the 1x resource pak. This method is not thread
   // safe! You should call it immediately after calling InitSharedInstance.
   void AddDataPackFromPath(const base::FilePath& path,
                            ScaleFactor scale_factor);
 
   // Same as above but using an already open file.
   void AddDataPackFromFile(base::File file, ScaleFactor scale_factor);
 
   // Same as above but using only a region (offset + size) of the file.
   void AddDataPackFromFileRegion(base::File file,
                                  const base::MemoryMappedFile::Region& region,
                                  ScaleFactor scale_factor);
 
+  // Same as above but using contents of the given buffer.
+  void AddDataPackFromBuffer(base::StringPiece buffer,
+                             ScaleFactor scale_factor);
+
   // Same as AddDataPackFromPath but does not log an error if the pack fails to
   // load.
   void AddOptionalDataPackFromPath(const base::FilePath& path,
                                    ScaleFactor scale_factor);
 
   // Changes the locale for an already-initialized ResourceBundle, returning the
   // name of the newly-loaded locale.  Future calls to get strings will return
   // the strings for this new locale.  This has no effect on existing or future
   // image resources.  |locale_resources_data_| is protected by a lock for the
   // duration of the swap, as GetLocalizedString() may be concurrently invoked
@@ skipping 239 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ResourceBundle);
 };
 
 }  // namespace ui
 
 // TODO(beng): Someday, maybe, get rid of this.
 using ui::ResourceBundle;
 
 #endif  // UI_BASE_RESOURCE_RESOURCE_BUNDLE_H_