Create a new action triggered when a BeginMainFrame is not expected before vsync

third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.h

 // Copyright 2013 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 WebLayerTreeViewImplForTesting_h
 #define WebLayerTreeViewImplForTesting_h
 
 #include "cc/test/test_task_graph_runner.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_single_thread_client.h"
@@ skipping 62 matching lines @@
   blink::WebEventListenerProperties eventListenerProperties(
       blink::WebEventListenerClass eventClass) const override;
   void setHaveScrollEventHandlers(bool) override;
   bool haveScrollEventHandlers() const override;
 
   // cc::LayerTreeHostClient implementation.
   void WillBeginMainFrame() override {}
   void DidBeginMainFrame() override {}
   void BeginMainFrame(const cc::BeginFrameArgs& args) override {}
   void BeginMainFrameNotExpectedSoon() override {}
+  void BeginMainFrameNotExpectedUntil(base::TimeTicks) override {}
   void UpdateLayerTreeHost() override;
   void ApplyViewportDeltas(const gfx::Vector2dF& innerDelta,
                            const gfx::Vector2dF& outerDelta,
                            const gfx::Vector2dF& elasticOverscrollDelta,
                            float pageScale,
                            float browserControlsDelta) override;
   void RecordWheelAndTouchScrollingCount(bool hasScrolledByWheel,
                                          bool hasScrolledByTouch) override;
   void RequestNewCompositorFrameSink() override;
   void DidInitializeCompositorFrameSink() override {}
@@ skipping 10 matching lines @@
 
  private:
   cc::TestTaskGraphRunner m_taskGraphRunner;
   std::unique_ptr<cc::AnimationHost> m_animationHost;
   std::unique_ptr<cc::LayerTreeHost> m_layerTreeHost;
 };
 
 }  // namespace blink
 
 #endif  // WebLayerTreeViewImplForTesting_h