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

chrome/browser/tab_contents/tab_contents_view_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 "chrome/browser/tab_contents/tab_contents_view_mac.h"
 
 #include <string>
 
+#import "base/mac/scoped_sending_event.h"
 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_mac.h"
 #include "chrome/browser/tab_contents/web_drag_bookmark_handler_mac.h"
 #import "chrome/browser/ui/cocoa/focus_tracker.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_widget_host.h"
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 #include "content/browser/tab_contents/popup_menu_helper_mac.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/tab_contents/tab_contents_delegate.h"
 #import "content/browser/tab_contents/web_drag_dest_mac.h"
 #import "content/browser/tab_contents/web_drag_source_mac.h"
 #import "content/common/chrome_application_mac.h"
-#import "content/common/mac/scoped_sending_event.h"
 #include "content/common/view_messages.h"
 #include "skia/ext/skia_utils_mac.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 
 using WebKit::WebDragOperation;
 using WebKit::WebDragOperationsMask;
 
 // Ensure that the WebKit::WebDragOperation enum values stay in sync with
 // NSDragOperation constants, since the code below static_casts between 'em.
 #define COMPILE_ASSERT_MATCHING_ENUM(name) \
@@ skipping 128 matching lines @@
 void TabContentsViewMac::StartDragging(
     const WebDropData& drop_data,
     WebDragOperationsMask allowed_operations,
     const SkBitmap& image,
     const gfx::Point& image_offset) {
   // By allowing nested tasks, the code below also allows Close(),
   // which would deallocate |this|.  The same problem can occur while
   // processing -sendEvent:, so Close() is deferred in that case.
   // Drags from web content do not come via -sendEvent:, this sets the
   // same flag -sendEvent: would.
-  content::mac::ScopedSendingEvent sending_event_scoper;
+  base::mac::ScopedSendingEvent sending_event_scoper;
 
   // The drag invokes a nested event loop, arrange to continue
   // processing events.
   MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
   NSDragOperation mask = static_cast<NSDragOperation>(allowed_operations);
   NSPoint offset = NSPointFromCGPoint(image_offset.ToCGPoint());
   [cocoa_view_ startDragWithDropData:drop_data
                    dragOperationMask:mask
                                image:gfx::SkBitmapToNSImage(image)
                               offset:offset];
@@ skipping 420 matching lines @@
       [[[notification userInfo] objectForKey:kSelectionDirection]
         unsignedIntegerValue];
   if (direction == NSDirectSelection)
     return;
 
   [self tabContents]->
       FocusThroughTabTraversal(direction == NSSelectingPrevious);
 }
 
 @end