Load the default favicon as a native image, rather than as a Skia image.

content/public/browser/content_browser_client.cc

 // 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.
 
 #include "content/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
@@ skipping 87 matching lines @@
 }
 
 std::string ContentBrowserClient::GetApplicationLocale() {
   return "en-US";
 }
 
 std::string ContentBrowserClient::GetAcceptLangs(BrowserContext* context) {
   return std::string();
 }
 
-gfx::ImageSkia* ContentBrowserClient::GetDefaultFavicon() {
+const gfx::ImageSkia* ContentBrowserClient::GetDefaultFavicon() {
   static gfx::ImageSkia* empty = new gfx::ImageSkia();
   return empty;
 }
 
 bool ContentBrowserClient::AllowAppCache(const GURL& manifest_url,
                                          const GURL& first_party,
                                          ResourceContext* context) {
   return true;
 }
 
@@ skipping 194 matching lines @@
 
 #if defined(VIDEO_HOLE)
 ExternalVideoSurfaceContainer*
 ContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     WebContents* web_contents) {
   return NULL;
 }
 #endif
 
 }  // namespace content