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

chrome/common/render_messages_params.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/common/render_messages_params.h"
 
 #include "chrome/common/navigation_gesture.h"
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/indexed_db_param_traits.h"
 #include "chrome/common/render_messages.h"
@@ skipping 20 matching lines @@
       is_post(false),
       is_content_filtered(false),
       was_within_same_page(false),
       http_status_code(0) {
 }
 
 ViewHostMsg_FrameNavigate_Params::~ViewHostMsg_FrameNavigate_Params() {
 }
 
 ViewHostMsg_UpdateRect_Params::ViewHostMsg_UpdateRect_Params()
-    : dx(0),
+    : dib_id(0),
+      dib_handle(TransportDIB::DefaultHandleValue()),
+      dx(0),
       dy(0),
       flags(0) {
-    // On windows, bitmap is of type "struct HandleAndSequenceNum"
-    memset(&bitmap, 0, sizeof(bitmap));
 }
 
 ViewHostMsg_UpdateRect_Params::~ViewHostMsg_UpdateRect_Params() {
 }
 
 ViewMsg_ClosePage_Params::ViewMsg_ClosePage_Params()
     : closing_process_id(0),
       closing_route_id(0),
       for_cross_site_transition(false),
       new_render_process_host_id(0),
@@ skipping 772 matching lines @@
   LogParam(p.is_content_filtered, l);
   l->append(", ");
   LogParam(p.was_within_same_page, l);
   l->append(", ");
   LogParam(p.http_status_code, l);
   l->append(")");
 }
 
 void ParamTraits<ViewHostMsg_UpdateRect_Params>::Write(
     Message* m, const param_type& p) {
-  WriteParam(m, p.bitmap);
+  WriteParam(m, p.dib_id);
+  WriteParam(m, p.dib_handle);
   WriteParam(m, p.bitmap_rect);
   WriteParam(m, p.dx);
   WriteParam(m, p.dy);
   WriteParam(m, p.scroll_rect);
   WriteParam(m, p.copy_rects);
   WriteParam(m, p.view_size);
   WriteParam(m, p.plugin_window_moves);
   WriteParam(m, p.flags);
 }
 
 bool ParamTraits<ViewHostMsg_UpdateRect_Params>::Read(
     const Message* m, void** iter, param_type* p) {
   return
-      ReadParam(m, iter, &p->bitmap) &&
+      ReadParam(m, iter, &p->dib_id) &&
+      ReadParam(m, iter, &p->dib_handle) &&
       ReadParam(m, iter, &p->bitmap_rect) &&
       ReadParam(m, iter, &p->dx) &&
       ReadParam(m, iter, &p->dy) &&
       ReadParam(m, iter, &p->scroll_rect) &&
       ReadParam(m, iter, &p->copy_rects) &&
       ReadParam(m, iter, &p->view_size) &&
       ReadParam(m, iter, &p->plugin_window_moves) &&
       ReadParam(m, iter, &p->flags);
 }
 
 void ParamTraits<ViewHostMsg_UpdateRect_Params>::Log(const param_type& p,
                                                      std::string* l) {
   l->append("(");
-  LogParam(p.bitmap, l);
+  LogParam(p.dib_id, l);
+  l->append(", ");
+  LogParam(p.dib_handle, l);
   l->append(", ");
   LogParam(p.bitmap_rect, l);
   l->append(", ");
   LogParam(p.dx, l);
   l->append(", ");
   LogParam(p.dy, l);
   l->append(", ");
   LogParam(p.scroll_rect, l);
   l->append(", ");
   LogParam(p.copy_rects, l);
@@ skipping 1042 matching lines @@
     const param_type& p,
     std::string* l) {
   l->append("(");
   LogParam(p.notification_type, l);
   l->append(", ");
   LogParam(p.acc_obj, l);
   l->append(")");
 }
 
 }  // namespace IPC