[not for review] Add Draw entries to window Performance Timeline

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 64789d238ce458ddac8ed9fb1afc768433651ca1..9b8177709a67fa92189d2885cfe8c59a8e1b456a 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -766,6 +766,22 @@ void RenderWidgetCompositor::ApplyScrollAndScale(
   widget_->webwidget()->applyScrollAndScale(scroll_delta, page_scale);
 }
 
+static std::pair<int, double> TickToDouble(
+    const std::pair<int, const base::TimeTicks> &tick)
+{
+  return std::make_pair(tick.first,
+                        (tick.second - base::TimeTicks()).InSecondsF());
+}
+
+void RenderWidgetCompositor::RecordDrawTiming(
+    int64_t rect_id,
+    const std::vector<std::pair<int, base::TimeTicks> > &draws) {

[enne (OOO), 2014/07/22 20:44:26]

style nit: ">& draws" not "> &draws"

Can you git cl format your patch?

[Mike B, 2014/07/25 23:09:41]

Done.

+  std::vector<std::pair<int, double> > drawTiming(draws.size());
+  std::transform(draws.begin(), draws.end(), drawTiming.begin(), TickToDouble);
+  widget_->webwidget()->recordDrawTiming(rect_id, drawTiming);
+  //widget_->webwidget()->applyScrollAndScale(scroll_delta, page_scale);

[enne (OOO), 2014/07/22 20:44:26]

?

[Mike B, 2014/07/25 23:09:41]

Done.

+}
+
 scoped_ptr<cc::OutputSurface> RenderWidgetCompositor::CreateOutputSurface(
     bool fallback) {
   return widget_->CreateOutputSurface(fallback);