Move Extension into extensions namespace

chrome/browser/themes/theme_service.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/themes/theme_service.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
@@ skipping 12 matching lines @@
 #include "grit/ui_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
 
 #if defined(OS_WIN) && !defined(USE_AURA)
 #include "ui/views/widget/native_widget_win.h"
 #endif
 
 using content::BrowserThread;
 using content::UserMetricsAction;
+using extensions::Extension;
 using ui::ResourceBundle;
 
 // Strings used in alignment properties.
 const char* ThemeService::kAlignmentCenter = "center";
 const char* ThemeService::kAlignmentTop = "top";
 const char* ThemeService::kAlignmentBottom = "bottom";
 const char* ThemeService::kAlignmentLeft = "left";
 const char* ThemeService::kAlignmentRight = "right";
 
 // Strings used in background tiling repetition properties.
@@ skipping 637 matching lines @@
 void ThemeService::OnInfobarDisplayed() {
   number_of_infobars_++;
 }
 
 void ThemeService::OnInfobarDestroyed() {
   number_of_infobars_--;
 
   if (number_of_infobars_ == 0)
     RemoveUnusedThemes();
 }