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

chrome/gpu/gpu_video_layer_glx.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/gpu/gpu_video_layer_glx.h"
 
 #include "app/gfx/gl/gl_bindings.h"
 #include "chrome/common/gpu_messages.h"
 #include "chrome/gpu/gpu_thread.h"
 #include "chrome/gpu/gpu_view_x.h"
@@ skipping 233 matching lines @@
 
 void GpuVideoLayerGLX::OnChannelConnected(int32 peer_pid) {
 }
 
 void GpuVideoLayerGLX::OnChannelError() {
   // FIXME(brettw) does this mean we aren't getting any more messages and we
   // should delete outselves?
   NOTIMPLEMENTED();
 }
 
-void GpuVideoLayerGLX::OnPaintToVideoLayer(base::ProcessId source_process_id,
-                                           TransportDIB::Id id,
+void GpuVideoLayerGLX::OnPaintToVideoLayer(TransportDIB::Handle dib_handle,
                                            const gfx::Rect& bitmap_rect) {
+  TransportDIB::ScopedHandle scoped_dib_handle(dib_handle);
   // TODO(scherkus): |native_size_| is set in constructor, so perhaps this check
   // should be a DCHECK().
   const int width = native_size_.width();
   const int height = native_size_.height();
   const int stride = width;
 
   if (width <= 0 || width > kMaxVideoLayerSize ||
       height <= 0 || height > kMaxVideoLayerSize)
     return;
 
-  TransportDIB* dib = TransportDIB::Map(id);
+  TransportDIB* dib = TransportDIB::Map(scoped_dib_handle.release());
   if (!dib)
     return;
 
   // Everything looks good, update our target position and size.
   target_rect_ = bitmap_rect;
 
   // Perform colour space conversion.
   uint8* planes[kYUVPlanes];
   planes[kYPlane] = reinterpret_cast<uint8*>(dib->memory());
   planes[kUPlane] = planes[kYPlane] + width * height;
@@ skipping 45 matching lines @@
   vertices[3] = -2.0f * (object.bottom() / height) + 1.0f;
 
   // Top right.
   vertices[4] = 2.0f * (object.right() / width) - 1.0f;
   vertices[5] = -2.0f * (object.y() / height) + 1.0f;
 
   // Bottom right.
   vertices[6] = 2.0f * (object.right() / width) - 1.0f;
   vertices[7] = -2.0f * (object.bottom() / height) + 1.0f;
 }