[Mac] Move ScopedSendingEvent from content/common/mac to base/mac.

content/browser/tab_contents/popup_menu_helper_mac.mm

 // 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.
 
 #import <Carbon/Carbon.h>
 
 #include "content/browser/tab_contents/popup_menu_helper_mac.h"
 
+#import "base/mac/scoped_sending_event.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/message_loop.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
-#import "content/common/mac/scoped_sending_event.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #import "ui/base/cocoa/base_view.h"
 #include "webkit/glue/webmenurunner_mac.h"
 
 PopupMenuHelper::PopupMenuHelper(RenderViewHost* render_view_host)
     : render_view_host_(render_view_host) {
   notification_registrar_.Add(
       this, content::NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
       content::Source<RenderWidgetHost>(render_view_host));
@@ skipping 23 matching lines @@
 
   {
     // Make sure events can be pumped while the menu is up.
     MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
 
     // One of the events that could be pumped is |window.close()|.
     // User-initiated event-tracking loops protect against this by
     // setting flags in -[CrApplication sendEvent:], but since
     // web-content menus are initiated by IPC message the setup has to
     // be done manually.
-    content::mac::ScopedSendingEvent sending_event_scoper;
+    base::mac::ScopedSendingEvent sending_event_scoper;
 
     // Now run a SYNCHRONOUS NESTED EVENT LOOP until the pop-up is finished.
     [menu_runner runMenuInView:cocoa_view
                     withBounds:[cocoa_view flipRectToNSRect:bounds]
                   initialIndex:selected_item];
   }
 
   if (!render_view_host_) {
     // Bad news, the RenderViewHost got deleted while we were off running the
     // menu. Nothing to do.
@@ skipping 10 matching lines @@
 
 void PopupMenuHelper::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK(type == content::NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED);
   DCHECK(content::Source<RenderWidgetHost>(source).ptr() == render_view_host_);
   render_view_host_ = NULL;
 }