Aura: Run DidCommit callbacks when context is lost.

content/browser/renderer_host/render_widget_host_view_aura.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_view_aura.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1768 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, ImageTransportFactoryObserver implementation:
 
 void RenderWidgetHostViewAura::OnLostResources() {
   current_surface_ = NULL;
   UpdateExternalTexture();
   locks_pending_commit_.clear();
 
+  // Make sure all ImageTransportClients are deleted now that the context those
+  // are using is becoming invalid. This sends pending ACKs and needs to happen
+  // after calling UpdateExternalTexture() which syncs with the impl thread.
+  RunCompositingDidCommitCallbacks();
+
   DCHECK(!shared_surface_handle_.is_null());
   ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
   factory->DestroySharedSurfaceHandle(shared_surface_handle_);
   shared_surface_handle_ = factory->CreateSharedSurfaceHandle();
   host_->CompositingSurfaceUpdated();
   host_->ScheduleComposite();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, private:
@@ skipping 192 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content