Move Extension into extensions namespace

chrome/browser/extensions/extension_web_ui.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_WEB_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEB_UI_H_
 #pragma once
 
 #include <string>
 
@@ skipping 24 matching lines @@
   // BrowserURLHandler
   static bool HandleChromeURLOverride(GURL* url,
                                       content::BrowserContext* browser_context);
   static bool HandleChromeURLOverrideReverse(
       GURL* url, content::BrowserContext* browser_context);
 
   // Register and unregister a dictionary of one or more overrides.
   // Page names are the keys, and chrome-extension: URLs are the values.
   // (e.g. { "newtab": "chrome-extension://<id>/my_new_tab.html" }
   static void RegisterChromeURLOverrides(Profile* profile,
-      const Extension::URLOverrideMap& overrides);
+      const extensions::Extension::URLOverrideMap& overrides);
   static void UnregisterChromeURLOverrides(Profile* profile,
-      const Extension::URLOverrideMap& overrides);
+      const extensions::Extension::URLOverrideMap& overrides);
   static void UnregisterChromeURLOverride(const std::string& page,
                                           Profile* profile,
                                           base::Value* override);
 
   // Called from BrowserPrefs
   static void RegisterUserPrefs(PrefService* prefs);
 
   // Get the favicon for the extension by getting an icon from the manifest.
   static void GetFaviconForURL(Profile* profile,
                                FaviconService::GetFaviconRequest* request,
@@ skipping 10 matching lines @@
   // TODO(aa): This seems out of place. Why is it not with the event routers for
   // the other extension APIs?
   scoped_ptr<BookmarkManagerExtensionEventRouter>
       bookmark_manager_extension_event_router_;
 
   // The URL this WebUI was created for.
   GURL url_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEB_UI_H_