DevTools: expose last composited frame metadata on RenderWidgetHostViewPort.

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index 9de8a85e7ea25707938a0f2f194a28912e7470ee..a1258eb887f532feada90f88ac4f98b0008f17ea 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -548,6 +548,16 @@ void RenderWidgetHostViewBase::EndFrameSubscription() {
   render_process_host->EndFrameSubscription(impl->GetRoutingID());
 }
 
+void RenderWidgetHostViewBase::UpdateCompositorFrameMetadata(
+    const cc::CompositorFrameMetadata& frame_metadata) {
+  compositor_frame_metadata_ = frame_metadata;
+}
+
+cc::CompositorFrameMetadata
+RenderWidgetHostViewBase::GetCompositorFrameMetadata() {
+  return compositor_frame_metadata_;
+}
+
 void RenderWidgetHostViewBase::OnOverscrolled(
     gfx::Vector2dF accumulated_overscroll,
     gfx::Vector2dF current_fling_velocity) {