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

chrome/browser/tab_contents/render_view_context_menu_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.
 
 #include "chrome/browser/tab_contents/render_view_context_menu_mac.h"
 
 #include "base/compiler_specific.h"
+#import "base/mac/scoped_sending_event.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/message_loop.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/menu_controller.h"
-#import "content/common/mac/scoped_sending_event.h"
 #include "grit/generated_resources.h"
 
 namespace {
 
 // Retrieves an NSMenuItem which has the specified command_id. This function
 // traverses the given |model| in the depth-first order. When this function
 // finds an item whose command_id is the same as the given |command_id|, it
 // returns the NSMenuItem associated with the item. This function emulates
 // views::MenuItemViews::GetMenuItemByID() for Mac.
 NSMenuItem* GetMenuItemByID(ui::MenuModel* model,
@@ skipping 56 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 sendingEventScoper;
+    base::mac::ScopedSendingEvent sendingEventScoper;
 
     // Show the menu.
     [NSMenu popUpContextMenu:[menuController_ menu]
                    withEvent:clickEvent
                      forView:parent_view_];
   }
 }
 
 void RenderViewContextMenuMac::ExecuteCommand(int id) {
   // Auxiliary windows that do not have address bars (Panels for example)
@@ skipping 47 matching lines @@
                                      command_id);
   if (!item)
     return;
 
   // Update the returned NSMenuItem directly so we can update it immediately.
   [item setEnabled:enabled];
   [item setTitle:SysUTF16ToNSString(title)];
   [item setHidden:hidden];
   [[item menu] itemChanged:item];
 }