[cc] Fix CompositorFrameSinkSupport BeginFrameAck interface.

android_webview/browser/test/rendering_test.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/test/rendering_test.h"
 
 #include <utility>
 
 #include "android_webview/browser/browser_view_renderer.h"
 #include "android_webview/browser/child_frame.h"
@@ skipping 100 matching lines @@
   ui_task_runner_->PostTask(FROM_HERE, run_loop_.QuitWhenIdleClosure());
 }
 
 content::SynchronousCompositor* RenderingTest::ActiveCompositor() const {
   return browser_view_renderer_->GetActiveCompositorForTesting();
 }
 
 std::unique_ptr<cc::CompositorFrame> RenderingTest::ConstructEmptyFrame() {
   std::unique_ptr<cc::CompositorFrame> compositor_frame(
       new cc::CompositorFrame);
+  compositor_frame->metadata.begin_frame_ack =
+      cc::BeginFrameAck(0, 1, 1, 0, true);
   std::unique_ptr<cc::RenderPass> root_pass(cc::RenderPass::Create());
   gfx::Rect viewport(browser_view_renderer_->size());
   root_pass->SetNew(1, viewport, viewport, gfx::Transform());
   compositor_frame->render_pass_list.push_back(std::move(root_pass));
   return compositor_frame;
 }
 
 std::unique_ptr<cc::CompositorFrame> RenderingTest::ConstructFrame(
     cc::ResourceId resource_id) {
   std::unique_ptr<cc::CompositorFrame> compositor_frame(ConstructEmptyFrame());
@@ skipping 26 matching lines @@
 void RenderingTest::PostInvalidate() {
   if (window_)
     window_->PostInvalidate();
 }
 
 gfx::Point RenderingTest::GetLocationOnScreen() {
   return gfx::Point();
 }
 
 }  // namespace android_webview