On Windows, create a new TransportDIB::Handle struct which includes the file

chrome/common/render_messages_params.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_COMMON_RENDER_MESSAGES_PARAMS_H_
 #define CHROME_COMMON_RENDER_MESSAGES_PARAMS_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 303 matching lines @@
   }
   static bool is_repaint_ack(int flags) {
     return (flags & IS_REPAINT_ACK) != 0;
   }
 };
 
 struct ViewHostMsg_UpdateRect_Params {
   ViewHostMsg_UpdateRect_Params();
   ~ViewHostMsg_UpdateRect_Params();
 
-  // The bitmap to be painted into the view at the locations specified by
-  // update_rects.
-  TransportDIB::Id bitmap;
+  // The ID of the bitmap to be painted into the view at the locations specified
+  // by update_rects.
+  TransportDIB::Id dib_id;
+
+  // The handle to the bitmap, in case it needs to be mapped on the browser.
+  TransportDIB::Handle dib_handle;
 
   // The position and size of the bitmap.
   gfx::Rect bitmap_rect;
 
   // The scroll offset.  Only one of these can be non-zero, and if they are
   // both zero, then it means there is no scrolling and the scroll_rect is
   // ignored.
   int dx;
   int dy;
 
@@ skipping 989 matching lines @@
 struct ParamTraits<ViewHostMsg_AccessibilityNotification_Params> {
   typedef ViewHostMsg_AccessibilityNotification_Params param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_PARAMS_H_