Cleanup: Remove unneeded headers from base/ (part 1)

chrome/browser/views/tab_contents/tab_contents_drag_win.cc

 // Copyright (c) 2010 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/views/tab_contents/tab_contents_drag_win.h"
 
 #include <windows.h>
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/message_loop.h"
 #include "base/task.h"
 #include "base/thread.h"
 #include "base/utf_string_conversions.h"
-#include "base/win_util.h"
 #include "chrome/browser/bookmarks/bookmark_drag_data.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/download/drag_download_file.h"
 #include "chrome/browser/download/drag_download_util.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/web_drag_source_win.h"
 #include "chrome/browser/tab_contents/web_drag_utils_win.h"
 #include "chrome/browser/tab_contents/web_drop_target_win.h"
 #include "chrome/browser/views/tab_contents/tab_contents_view_win.h"
@@ skipping 329 matching lines @@
 
 void TabContentsDragWin::OnDataObjectDisposed() {
   DCHECK(drag_drop_thread_id_ == PlatformThread::CurrentId());
 
   // The drag-and-drop thread is only closed after OLE is done with
   // DataObjectImpl.
   ChromeThread::PostTask(
       ChromeThread::UI, FROM_HERE,
       NewRunnableMethod(this, &TabContentsDragWin::CloseThread));
 }