Move Extension into extensions namespace

chrome/browser/ui/webui/ntp/favicon_webui_handler.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/browser/ui/webui/ntp/favicon_webui_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
@@ skipping 124 matching lines @@
   dom_id_map_.erase(id);
 }
 
 void FaviconWebUIHandler::HandleGetAppIconDominantColor(
     const ListValue* args) {
   std::string extension_id;
   CHECK(args->GetString(0, &extension_id));
 
   ExtensionService* extension_service =
       Profile::FromWebUI(web_ui())->GetExtensionService();
-  const Extension* extension = extension_service->GetExtensionById(
+  const extensions::Extension* extension = extension_service->GetExtensionById(
       extension_id, false);
   if (!extension)
     return;
   app_icon_color_manager_->LoadIcon(extension);
 }
 
 void FaviconWebUIHandler::NotifyAppIconReady(const std::string& extension_id) {
   const SkBitmap& bitmap = app_icon_color_manager_->GetIcon(extension_id);
   // TODO(estade): would be nice to avoid a round trip through png encoding.
   std::vector<unsigned char> bits;
   if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, true, &bits))
     return;
   scoped_refptr<base::RefCountedStaticMemory> bits_mem(
       new base::RefCountedStaticMemory(&bits.front(), bits.size()));
   scoped_ptr<StringValue> color_value(GetDominantColorCssString(bits_mem));
   StringValue id(extension_id);
   web_ui()->CallJavascriptFunction(
       "ntp.setStripeColor", id, *color_value);
 }