Move more dnd related files to ui/base

chrome/browser/tab_contents/web_drop_target_win.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_
 #define CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_
 #pragma once
 
-#include "app/win/drop_target.h"
 #include "base/scoped_ptr.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
+#include "ui/base/dragdrop/drop_target.h"
 
 class InterstitialDropTarget;
 class RenderViewHost;
 class TabContents;
 
 // A helper object that provides drop capabilities to a TabContents. The
 // DropTarget handles drags that enter the region of the TabContents by
 // passing on the events to the renderer.
-class WebDropTarget : public app::win::DropTarget {
+class WebDropTarget : public ui::DropTarget {
  public:
   // Create a new WebDropTarget associating it with the given HWND and
   // TabContents.
   WebDropTarget(HWND source_hwnd, TabContents* contents);
   virtual ~WebDropTarget();
 
   void set_drag_cursor(WebKit::WebDragOperation op) {
     drag_cursor_ = op;
   }
 
@@ skipping 30 matching lines @@
   WebKit::WebDragOperation drag_cursor_;
 
   // A special drop target handler for when we try to d&d while an interstitial
   // page is showing.
   scoped_ptr<InterstitialDropTarget> interstitial_drop_target_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDropTarget);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_