Support for defered media load to cast_content_render_client.

chromecast/base/metrics/cast_metrics_helper.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.
 
 #include "chromecast/base/metrics/cast_metrics_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 133 matching lines @@
 
 void CastMetricsHelper::LogMediaPause() {
   MAKE_SURE_THREAD(LogMediaPause);
   RecordSimpleAction(EncodeAppInfoIntoMetricsName(
       "MediaPause",
       app_id_.empty() ? app_name_ : app_id_,
       session_id_,
       sdk_version_));
 }
 
+void CastMetricsHelper::LogTimeToFirstPaint() {
+  MAKE_SURE_THREAD(LogTimeToFirstPaint);
+  base::TimeDelta launch_time = base::TimeTicks::Now() - app_start_time_;
+  const std::string uma_name(GetMetricsNameWithAppName("Startup",
+                                                       "TimeToFirstPaint"));
+  LogMediumTimeHistogramEvent(uma_name, launch_time);
+  LOG(INFO) << uma_name << " is " << launch_time.InSecondsF() << " seconds.";
+}
+
 void CastMetricsHelper::LogTimeToDisplayVideo() {
   if (!new_startup_time_) {  // For faster check.
     return;
   }
   MAKE_SURE_THREAD(LogTimeToDisplayVideo);
   new_startup_time_ = false;
   base::TimeDelta launch_time = base::TimeTicks::Now() - app_start_time_;
   const std::string uma_name(GetMetricsNameWithAppName("Startup",
                                                        "TimeToDisplayVideo"));
   LogMediumTimeHistogramEvent(uma_name, launch_time);
@@ skipping 146 matching lines @@
     const base::TimeDelta& value) {
   // Follow UMA_HISTOGRAM_MEDIUM_TIMES definition.
   LogTimeHistogramEvent(name, value,
                         base::TimeDelta::FromMilliseconds(10),
                         base::TimeDelta::FromMinutes(3),
                         50);
 }
 
 }  // namespace metrics
 }  // namespace chromecast