Move Extension into extensions namespace

chrome/browser/extensions/api/commands/extension_command_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/extensions/api/commands/extension_command_service.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/notification_service.h"
 
+using extensions::Extension;
+
 namespace {
 
 const char kExtension[] = "extension";
 const char kCommandName[] = "command_name";
 
 std::string GetPlatformKeybindingKeyForAccelerator(
     const ui::Accelerator& accelerator) {
   return extensions::Command::CommandPlatform() + ":" +
          UTF16ToUTF8(accelerator.GetShortcutText());
 }
@@ skipping 198 matching lines @@
     item->GetString(kExtension, &extension);
     if (extension == extension_id)
       keys_to_remove.push_back(key);
   }
 
   for (KeysToRemove::const_iterator it = keys_to_remove.begin();
        it != keys_to_remove.end(); ++it) {
     bindings->Remove(*it, NULL);
   }
 }