Fix for pixelated icons in extension install ui on 2x scale.

chrome/common/extensions/extension.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 "chrome/common/extensions/extension.h"
 
 #include <ostream>
 
 #include "base/base64.h"
 #include "base/basictypes.h"
@@ skipping 3043 matching lines @@
     DLOG(ERROR) << "Icon file has unexpected size: "
                 << base::IntToString(decoded->width()) << "x"
                 << base::IntToString(decoded->height());
     return;
   }
 
   result->swap(decoded);
 }
 
 // static
-const SkBitmap& Extension::GetDefaultIcon(bool is_app) {
+const gfx::ImageSkia& Extension::GetDefaultIcon(bool is_app) {
   int id = is_app ? IDR_APP_DEFAULT_ICON : IDR_EXTENSION_DEFAULT_ICON;
-  return *ResourceBundle::GetSharedInstance().GetBitmapNamed(id);
+  return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(id);
 }
 
 // static
 GURL Extension::GetBaseURLFromExtensionId(const std::string& extension_id) {
   return GURL(std::string(chrome::kExtensionScheme) +
               content::kStandardSchemeSeparator + extension_id + "/");
 }
 
 bool Extension::InitFromValue(int flags, string16* error) {
   DCHECK(error);
@@ skipping 888 matching lines @@
 
 UpdatedExtensionPermissionsInfo::UpdatedExtensionPermissionsInfo(
     const Extension* extension,
     const PermissionSet* permissions,
     Reason reason)
     : reason(reason),
       extension(extension),
       permissions(permissions) {}
 
 }   // namespace extensions