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

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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.
 
 #include "content/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 748 matching lines @@
 void RenderWidgetCompositor::Layout() {
   widget_->webwidget()->layout();
 }
 
 void RenderWidgetCompositor::ApplyScrollAndScale(
     const gfx::Vector2d& scroll_delta,
     float page_scale) {
   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);
 }
 
 void RenderWidgetCompositor::DidInitializeOutputSurface() {
 }
 
 void RenderWidgetCompositor::WillCommit() {
   widget_->InstrumentWillComposite();
@@ skipping 31 matching lines @@
   widget_->OnSwapBuffersAborted();
 }
 
 void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
   cc::ContextProvider* provider =
       RenderThreadImpl::current()->SharedMainThreadContextProvider().get();
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 }  // namespace content