chromium/src/third_party/blink/renderer/platform/widget/compositing/test/stub_layer_tree_view_delegate.h

// Copyright 2018 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_WIDGET_COMPOSITING_TEST_STUB_LAYER_TREE_VIEW_DELEGATE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WIDGET_COMPOSITING_TEST_STUB_LAYER_TREE_VIEW_DELEGATE_H_

#include "cc/paint/element_id.h"
#include "third_party/blink/renderer/platform/widget/compositing/layer_tree_view_delegate.h"

namespace cc {
struct ApplyViewportChangesArgs;
}

namespace blink {

class StubLayerTreeViewDelegate : public LayerTreeViewDelegate {
 public:
  StubLayerTreeViewDelegate() = default;

  // LayerTreeViewDelegate overrides:
  void RequestNewLayerTreeFrameSink(
      LayerTreeFrameSinkCallback callback) override {}
  void ApplyViewportChanges(const cc::ApplyViewportChangesArgs& args) override {
  }
  void UpdateCompositorScrollState(
      const cc::CompositorCommitData& commit_data) override {}
  void BeginMainFrame(base::TimeTicks frame_time) override {}
  void OnDeferMainFrameUpdatesChanged(bool) override {}
  void OnDeferCommitsChanged(bool) override {}
  void DidBeginMainFrame() override {}
  void DidCommitAndDrawCompositorFrame() override {}
  void WillCommitCompositorFrame() override {}
  void DidCommitCompositorFrame(base::TimeTicks commit_start_time) override {}
  void DidCompletePageScaleAnimation() override {}
  void DidObserveFirstScrollDelay(
      base::TimeDelta first_scroll_delay,
      base::TimeTicks first_scroll_timestamp) override {}
  void RecordStartOfFrameMetrics() override {}
  void RecordEndOfFrameMetrics(
      base::TimeTicks frame_begin_time,
      cc::ActiveFrameSequenceTrackers trackers) override {}
  std::unique_ptr<cc::BeginMainFrameMetrics> GetBeginMainFrameMetrics()
      override {
    return nullptr;
  }
  std::unique_ptr<cc::WebVitalMetrics> GetWebVitalMetrics() override {
    return nullptr;
  }
  void BeginUpdateLayers() override {}
  void EndUpdateLayers() override {}
  void UpdateVisualState() override {}
  void WillBeginMainFrame() override {}
};

}  // namespace blink

#endif  // _THIRD_PARTY_BLINK_RENDERER_PLATFORM_WIDGET_COMPOSITING_TEST_STUB_LAYER_TREE_VIEW_DELEGATE_H_