Use solid color layer for delegated surface.

content/browser/compositor/delegated_frame_host.cc

 // Copyright 2014 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/compositor/delegated_frame_host.h"
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
@@ skipping 495 matching lines @@
   if (resources.empty())
     return;
   std::copy(resources.begin(),
             resources.end(),
             std::back_inserter(surface_returned_resources_));
   if (!pending_delegated_ack_count_)
     SendReturnedDelegatedResources(last_output_surface_id_);
 }
 
 void DelegatedFrameHost::EvictDelegatedFrame() {
-  client_->GetLayer()->SetShowPaintedContent();
+  client_->GetLayer()->SetShowSolidColorContent();
   frame_provider_ = NULL;
   if (!surface_id_.is_null()) {
     surface_factory_->Destroy(surface_id_);
     surface_id_ = cc::SurfaceId();
   }
   delegated_frame_evictor_->DiscardedFrame();
 }
 
 // static
 void DelegatedFrameHost::CopyFromCompositingSurfaceHasResult(
@@ skipping 455 matching lines @@
   if (frame_provider_.get()) {
     new_layer->SetShowDelegatedContent(frame_provider_.get(),
                                        current_frame_size_in_dip_);
   }
   if (!surface_id_.is_null()) {
     new_layer->SetShowSurface(surface_id_, current_frame_size_in_dip_);
   }
 }
 
 }  // namespace content