Remove current implementation of frame timing events.

content/renderer/gpu/render_widget_compositor.h

Index: content/renderer/gpu/render_widget_compositor.h
diff --git a/content/renderer/gpu/render_widget_compositor.h b/content/renderer/gpu/render_widget_compositor.h
index a9b0f19015fb8f5cd5368eae5496f5bc5bf88dd6..1e15b8d2727bdfd38d859b18f65bcbb75d5ed5ad 100644
--- a/content/renderer/gpu/render_widget_compositor.h
+++ b/content/renderer/gpu/render_widget_compositor.h
@@ -172,11 +172,6 @@ class CONTENT_EXPORT RenderWidgetCompositor
   void DidCommitAndDrawFrame() override;
   void DidCompleteSwapBuffers() override;
   void DidCompletePageScaleAnimation() override;
-  void RecordFrameTimingEvents(
-      std::unique_ptr<cc::FrameTimingTracker::CompositeTimingSet>
-          composite_events,
-      std::unique_ptr<cc::FrameTimingTracker::MainFrameTimingSet>
-          main_frame_events) override;
 
   // cc::LayerTreeHostSingleThreadClient implementation.
   void RequestScheduleAnimation() override;