Delivering the FIRST_NONEMPTY_PAINT phase changing event to base/

chrome/browser/metrics/first_web_contents_profiler.cc

 // Copyright 2014 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.
 
 #if !defined(OS_ANDROID)
 
 #include "chrome/browser/metrics/first_web_contents_profiler.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/process/process_info.h"
 #include "base/time/time.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "components/metrics/profiler/tracking_synchronizer.h"
+#include "components/metrics/proto/profiler_event.pb.h"
 
 scoped_ptr<FirstWebContentsProfiler>
 FirstWebContentsProfiler::CreateProfilerForFirstWebContents(
     Delegate* delegate) {
   DCHECK(delegate);
   for (chrome::BrowserIterator iterator; !iterator.done(); iterator.Next()) {
     Browser* browser = *iterator;
     content::WebContents* web_contents =
         browser->tab_strip_model()->GetActiveWebContents();
     if (web_contents) {
@@ skipping 19 matching lines @@
     return;
 
   collected_paint_metric_ = true;
   if (!process_creation_time_.is_null()) {
     base::TimeDelta elapsed = base::Time::Now() - process_creation_time_;
 
     UMA_HISTOGRAM_LONG_TIMES_100("Startup.FirstWebContents.NonEmptyPaint",
                                  elapsed);
   }
 
+  metrics::TrackingSynchronizer::OnProfilingPhaseCompleted(
+      metrics::ProfilerEventProto::EVENT_FIRST_NONEMPTY_PAINT);
+
   if (IsFinishedCollectingMetrics())
     FinishedCollectingMetrics();
 }
 
 void FirstWebContentsProfiler::DocumentOnLoadCompletedInMainFrame() {
   if (collected_load_metric_)
     return;
 
   collected_load_metric_ = true;
   if (!process_creation_time_.is_null()) {
@@ skipping 13 matching lines @@
 
 bool FirstWebContentsProfiler::IsFinishedCollectingMetrics() {
   return collected_paint_metric_ && collected_load_metric_;
 }
 
 void FirstWebContentsProfiler::FinishedCollectingMetrics() {
   delegate_->ProfilerFinishedCollectingMetrics();
 }
 
 #endif  // !defined(OS_ANDROID)