Get rid of chrome dependencies from tab_contents_drag_win.cc. After this I'll move it to content\br…

chrome/browser/tab_contents/web_drag_bookmark_handler_win.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_WIN_H_
 #define CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_WIN_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/bookmarks/bookmark_node_data.h"
 #include "content/browser/tab_contents/web_drag_dest_delegate.h"
 
 class TabContentsWrapper;
 
 // Chrome needs to intercept content drag events so it can dispatch them to the
 // bookmarks and extensions system.
 class WebDragBookmarkHandlerWin : public content::WebDragDestDelegate {
  public:
   WebDragBookmarkHandlerWin();
   virtual ~WebDragBookmarkHandlerWin();
 
   // Overridden from content::WebDragDestDelegate:
   virtual void DragInitialize(content::WebContents* contents) OVERRIDE;
   virtual void OnDragOver(IDataObject* data_object) OVERRIDE;
   virtual void OnDragEnter(IDataObject* data_object) OVERRIDE;
   virtual void OnDrop(IDataObject* data_object) OVERRIDE;
   virtual void OnDragLeave(IDataObject* data_object) OVERRIDE;
+  virtual bool AddDragData(const WebDropData& drop_data,
+                           ui::OSExchangeData* data) OVERRIDE;
 
  private:
   // The TabContentsWrapper for the drag.
   // Weak reference; may be NULL if the contents aren't contained in a wrapper
   // (e.g. WebUI dialogs).
   TabContentsWrapper* tab_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDragBookmarkHandlerWin);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_WIN_H_