cc: Plumbing for BeginFrameSource based on Surfaces

android_webview/browser/hardware_renderer.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 "android_webview/browser/hardware_renderer.h"
 
 #include "android_webview/browser/aw_gl_surface.h"
 #include "android_webview/browser/aw_render_thread_context_provider.h"
 #include "android_webview/browser/child_frame.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
@@ skipping 186 matching lines @@
   output_surface_->SetExternalStencilTest(stencil_enabled);
   display_->SetExternalClip(clip);
   display_->DrawAndSwap();
 }
 
 void HardwareRenderer::ReturnResources(
     const cc::ReturnedResourceArray& resources) {
   shared_renderer_state_->InsertReturnedResourcesOnRT(resources);
 }
 
+void HardwareRenderer::SetBeginFrameSource(
+    cc::BeginFrameSource* begin_frame_source) {
+  // We will not expect the cc::Display to give us a BeginFrameSource since
+  // it will not have an independent DisplayScheduler.
+  NOTREACHED();
+}
+
 void HardwareRenderer::SetBackingFrameBufferObject(
     int framebuffer_binding_ext) {
   gl_surface_->SetBackingFrameBufferObject(framebuffer_binding_ext);
 }
 
 void HardwareRenderer::ReturnResourcesInChildFrame() {
   if (child_frame_.get() && child_frame_->frame.get()) {
     cc::ReturnedResourceArray resources_to_return;
     cc::TransferableResource::ReturnResources(
         child_frame_->frame->delegated_frame_data->resource_list,
         &resources_to_return);
 
     ReturnResources(resources_to_return);
   }
   child_frame_.reset();
 }
 
 }  // namespace android_webview