Enforce constant size and device scale factor for surfaces

cc/test/mock_compositor_frame_sink_support_client.h

 // Copyright 2017 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.
 
 #ifndef CC_TEST_MOCK_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_
 #define CC_TEST_MOCK_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_
 
 #include "cc/surfaces/compositor_frame_sink_support_client.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace cc {
 namespace test {
 
 class MockCompositorFrameSinkSupportClient
     : public CompositorFrameSinkSupportClient {
  public:
   MockCompositorFrameSinkSupportClient();
   ~MockCompositorFrameSinkSupportClient() override;
 
   // CompositorFrameSinkSupportClient implementation.
   MOCK_METHOD1(DidReceiveCompositorFrameAck,
                void(const ReturnedResourceArray&));
   MOCK_METHOD1(OnBeginFrame, void(const BeginFrameArgs&));
   MOCK_METHOD1(ReclaimResources, void(const ReturnedResourceArray&));
   MOCK_METHOD2(WillDrawSurface, void(const LocalSurfaceId&, const gfx::Rect&));
+  void DidRejectCompositorFrame() override;
 };
 
 }  // namespace test
 }  // namespace cc
 
 #endif  // CC_TEST_MOCK_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_