Fix another d&d crash that happens when the tab contents

chrome/browser/views/tab_contents/tab_contents_view_win.cc

 // Copyright (c) 2006-2008 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_view_win.h"
 
 #include <windows.h>
 
 #include "app/gfx/canvas_paint.h"
 #include "app/os_exchange_data.h"
@@ skipping 160 matching lines @@
       // Pass in NULL as the profile so that the bookmark always adds the url
       // rather than trying to move an existing url.
       bm_drag_data.Write(NULL, data);
     } else {
       data->SetURL(drop_data.url, drop_data.url_title);
     }
   }
   if (!drop_data.plain_text.empty())
     data->SetString(drop_data.plain_text);
 
-  drag_source_ = new WebDragSource(GetNativeView(),
-                                   tab_contents()->render_view_host());
+  drag_source_ = new WebDragSource(GetNativeView(), tab_contents());
 
   DWORD effects;
 
   // We need to enable recursive tasks on the message loop so we can get
   // updates while in the system DoDragDrop loop.
   bool old_state = MessageLoop::current()->NestableTasksAllowed();
   MessageLoop::current()->SetNestableTasksAllowed(true);
   DoDragDrop(data, drag_source_, DROPEFFECT_COPY | DROPEFFECT_LINK, &effects);
   MessageLoop::current()->SetNestableTasksAllowed(old_state);
 
@@ skipping 477 matching lines @@
   }
   return false;
 }
 
 void TabContentsViewWin::WheelZoom(int distance) {
   if (tab_contents()->delegate()) {
     bool zoom_in = distance > 0;
     tab_contents()->delegate()->ContentsZoomChange(zoom_in);
   }
 }