[android_webview] Do not extract webviewchromium.pak

ui/base/resource/resource_bundle.h

Index: ui/base/resource/resource_bundle.h
diff --git a/ui/base/resource/resource_bundle.h b/ui/base/resource/resource_bundle.h
index 1e6ca16d4135df2e7074a59001284558593aa8bb..b0e9cdb1738bf4fa6df2c116e1929eb90eff3ad4 100644
--- a/ui/base/resource/resource_bundle.h
+++ b/ui/base/resource/resource_bundle.h
@@ -132,12 +132,16 @@ class UI_BASE_EXPORT ResourceBundle {
   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);