[android_webview] Do not extract webviewchromium.pak

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 <map>
 #include <string>
 
@@ skipping 114 matching lines @@
   // the files are hardcoded in ResourceBundle. Fix it to allow to specify which
   // files are loaded (e.g. add a new method in Delegate).
   static std::string InitSharedInstanceWithLocale(
       const std::string& pref_locale, Delegate* delegate);
 
   // Same as InitSharedInstanceWithLocale(), but loads only localized resources,
   // without default resource packs.
   static std::string InitSharedInstanceLocaleOnly(
       const std::string& pref_locale, Delegate* delegate);
 
-  // Initialize the ResourceBundle using given file. The second argument
-  // controls whether or not ResourceBundle::LoadCommonResources is called.
+  // Initialize the ResourceBundle using the given file region. If |region| is
+  // MemoryMappedFile::Region::kWholeFile, the entire |pak_file| is used.
+  // |should_load_common_resources| controls whether or not LoadCommonResources
+  // is called.
   // This allows the use of this function in a sandbox without local file
   // access (as on Android).
-  static void InitSharedInstanceWithPakFile(base::File file,
-                                            bool should_load_common_resources);
+  static void InitSharedInstanceWithPakFileRegion(
+      base::File pak_file,
+      const base::MemoryMappedFile::Region& region,
+      bool should_load_common_resources);
 
   // 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();
 
@@ skipping 266 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_