Pass collected frame timing events to Blink

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index abc113929c2b8f9cf38e7b7c8bca0e7330b3ffd8..4a3cba843336770eb27491064d5bbdfb44295d29 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -954,6 +954,38 @@ void RenderWidgetCompositor::DidAbortSwapBuffers() {
   widget_->OnSwapBuffersAborted();
 }
 
+void RenderWidgetCompositor::RecordFrameTimingEvents(
+    scoped_ptr<cc::FrameTimingTracker::CompositeTimingSet> composite_events,
+    scoped_ptr<cc::FrameTimingTracker::MainFrameTimingSet> main_frame_events) {
+  for (const auto& composite_event : *composite_events ) {
+    int64_t frameId = composite_event.first;
+    const std::vector<cc::FrameTimingTracker::CompositeTimingEvent>& events =
+        composite_event.second;
+    std::vector<blink::WebFrameTimingEvent> webEvents;
+    for (size_t i = 0; i < events.size(); ++i) {
+      webEvents.push_back(blink::WebFrameTimingEvent(
+          events[i].frame_id,
+          (events[i].timestamp - base::TimeTicks()).InSecondsF()));
+    }
+    widget_->webwidget()->recordFrameTimingEvent(
+        blink::WebWidget::CompositeEvent, frameId, webEvents);
+  }
+  for (const auto& main_frame_event : *main_frame_events ) {
+    int64_t frameId = main_frame_event.first;
+    const std::vector<cc::FrameTimingTracker::MainFrameTimingEvent>& events =
+        main_frame_event.second;
+    std::vector<blink::WebFrameTimingEvent> webEvents;
+    for (size_t i = 0; i < events.size(); ++i) {
+      webEvents.push_back(blink::WebFrameTimingEvent(
+          events[i].frame_id,
+          (events[i].timestamp - base::TimeTicks()).InSecondsF(),
+          (events[i].end_time - base::TimeTicks()).InSecondsF()));
+    }
+    widget_->webwidget()->recordFrameTimingEvent(
+        blink::WebWidget::RenderEvent, frameId, webEvents);
+  }
+}
+
 void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
   cc::ContextProvider* provider =
       compositor_deps_->GetSharedMainThreadContextProvider();