Pass Surface ID namespace to renderer compositors.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 447 matching lines @@
 void RenderWidgetHostViewMac::DelegatedFrameHostOnLostCompositorResources() {
   render_widget_host_->ScheduleComposite();
 }
 
 void RenderWidgetHostViewMac::DelegatedFrameHostUpdateVSyncParameters(
     const base::TimeTicks& timebase,
     const base::TimeDelta& interval) {
   render_widget_host_->UpdateVSyncParameters(timebase, interval);
 }
 
+void RenderWidgetHostViewMac::DelegatedFrameHostUpdateSurfaceIdNamespace(
+    uint32_t surface_id_namespace) {
+  render_widget_host_->Send(new ViewMsg_UpdateSurfaceIdNamespace(
+      render_widget_host_->GetRoutingID(), surface_id_namespace));
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // AcceleratedWidgetMacNSView, public:
 
 NSView* RenderWidgetHostViewMac::AcceleratedWidgetGetNSView() const {
   return cocoa_view_;
 }
 
 bool RenderWidgetHostViewMac::AcceleratedWidgetShouldIgnoreBackpressure()
     const {
   // If vsync is disabled, then always draw and ack frames immediately.
@@ skipping 1078 matching lines @@
 void RenderWidgetHostViewMac::WheelEventAck(
     const blink::WebMouseWheelEvent& event,
     InputEventAckState ack_result) {
   bool consumed = ack_result == INPUT_EVENT_ACK_STATE_CONSUMED;
   // Only record a wheel event as unhandled if JavaScript handlers got a chance
   // to see it (no-op wheel events are ignored by the event dispatcher)
   if (event.deltaX || event.deltaY)
     [cocoa_view_ processedWheelEvent:event consumed:consumed];
 }
 
+uint32_t RenderWidgetHostViewMac::GetSurfaceIdNamespace() {
+  return delegated_frame_host_->GetSurfaceIdNamespace();
+}
+
 bool RenderWidgetHostViewMac::Send(IPC::Message* message) {
   if (render_widget_host_)
     return render_widget_host_->Send(message);
   delete message;
   return false;
 }
 
 void RenderWidgetHostViewMac::ShutdownHost() {
   weak_factory_.InvalidateWeakPtrs();
   render_widget_host_->Shutdown();
@@ skipping 1914 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end