Move Extension into extensions namespace

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // 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/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 529 matching lines @@
   if ([BrowserWindowUtils shouldHandleKeyboardEvent:event])
     [BrowserWindowUtils handleKeyboardEvent:event.os_event inWindow:window()];
 }
 
 void BrowserWindowCocoa::ShowCreateWebAppShortcutsDialog(
     TabContentsWrapper* tab_contents) {
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::ShowCreateChromeAppShortcutsDialog(
-    Profile* profile, const Extension* app) {
+    Profile* profile, const extensions::Extension* app) {
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::Cut() {
   [NSApp sendAction:@selector(cut:) to:nil from:nil];
 }
 
 void BrowserWindowCocoa::Copy() {
   [NSApp sendAction:@selector(copy:) to:nil from:nil];
 }
@@ skipping 100 matching lines @@
   AvatarMenuBubbleController* menu =
       [[AvatarMenuBubbleController alloc] initWithBrowser:browser_
                                                anchoredAt:point];
   [[menu bubble] setAlignment:info_bubble::kAlignEdgeToAnchorEdge];
   [menu showWindow:nil];
 }
 
 void BrowserWindowCocoa::ShowAvatarBubbleFromAvatarButton() {
   [[controller_ avatarButtonController] showAvatarBubble];
 }