Move output surface fallback from cc to embedders

cc/test/fake_layer_tree_host_client.cc

 // Copyright 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 "cc/test/fake_layer_tree_host_client.h"
 
 #include "cc/output/context_provider.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "cc/trees/layer_tree_host.h"
 
 namespace cc {
 
 FakeLayerTreeHostClient::FakeLayerTreeHostClient(RendererOptions options)
     : use_software_rendering_(options == DIRECT_SOFTWARE ||
                               options == DELEGATED_SOFTWARE),
       use_delegating_renderer_(options == DELEGATED_3D ||
                                options == DELEGATED_SOFTWARE),
       host_(NULL) {
 }
 
 FakeLayerTreeHostClient::~FakeLayerTreeHostClient() {}
 
-void FakeLayerTreeHostClient::RequestNewOutputSurface(bool fallback) {
+void FakeLayerTreeHostClient::RequestNewOutputSurface() {
   DCHECK(host_);
   scoped_ptr<OutputSurface> surface;
   if (use_software_rendering_) {
     if (use_delegating_renderer_) {
       surface = FakeOutputSurface::CreateDelegatingSoftware(
           make_scoped_ptr(new SoftwareOutputDevice));
     } else {
       surface = FakeOutputSurface::CreateSoftware(
           make_scoped_ptr(new SoftwareOutputDevice));
     }
   } else if (use_delegating_renderer_) {
     surface = FakeOutputSurface::CreateDelegating3d();
   } else {
     surface = FakeOutputSurface::Create3d();
   }
   host_->SetOutputSurface(surface.Pass());
 }
 
+void FakeLayerTreeHostClient::DidFailToInitializeOutputSurface() {
+  RequestNewOutputSurface();
+}
+
 }  // namespace cc