Pass Surface ID namespace to renderer compositors.

content/browser/renderer_host/render_widget_host_impl.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 #include <set>
 #include <utility>
 
@@ skipping 394 matching lines @@
 }
 
 void RenderWidgetHostImpl::Init() {
   DCHECK(process_->HasConnection());
 
   renderer_initialized_ = true;
 
   GpuSurfaceTracker::Get()->SetSurfaceHandle(
       surface_id_, GetCompositingSurface());
 
+  uint32_t surface_id_namespace = 0;
+  if (view_)
+    surface_id_namespace = view_->GetSurfaceIdNamespace();
+
   // Send the ack along with the information on placement.
-  Send(new ViewMsg_CreatingNew_ACK(routing_id_));
+  Send(new ViewMsg_CreatingNew_ACK(routing_id_, surface_id_namespace));
   GetProcess()->ResumeRequestsForView(routing_id_);
 
   WasResized();
 }
 
 void RenderWidgetHostImpl::InitForFrame() {
   DCHECK(process_->HasConnection());
   renderer_initialized_ = true;
 }
 
@@ skipping 1692 matching lines @@
 }
 #endif
 
 SkColorType RenderWidgetHostImpl::PreferredReadbackFormat() {
   if (view_)
     return view_->PreferredReadbackFormat();
   return kN32_SkColorType;
 }
 
 }  // namespace content