Log BufferedResourceLoader events to MediaLog.

media/base/media_log.cc

 // Copyright (c) 2011 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 "media/base/media_log.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 
 namespace media {
 
 // A count of all MediaLogs created on this render process.
 // Used to generate unique ids.
 static base::AtomicSequenceNumber media_log_count(base::LINKER_INITIALIZED);
 
 const char* MediaLog::EventTypeToString(MediaLogEvent::Type type) {
   switch (type) {
     case MediaLogEvent::CREATING:
       return "CREATING";
     case MediaLogEvent::DESTROYING:
       return "DESTROYING";
     case MediaLogEvent::LOAD:
       return "LOAD";
     case MediaLogEvent::PLAY:
       return "PLAY";
     case MediaLogEvent::PAUSE:
       return "PAUSE";
+    case MediaLogEvent::BUFFERED_EXTENTS_CHANGED:
+      return "BUFFERED_EXTENTS_CHANGED";
   }
   NOTREACHED();
   return NULL;
 }
 
 MediaLog::MediaLog() {
   id_ = media_log_count.GetNext();
 }
 
 MediaLog::~MediaLog() {}
 
-void MediaLog::Load(const std::string& url) {
-  MediaLogEvent* event = CreateEvent(MediaLogEvent::LOAD);
+MediaLogEvent* MediaLog::CreateLoadEvent(const std::string& url) {
+  scoped_ptr<MediaLogEvent> event(CreateEvent(MediaLogEvent::LOAD));
   event->params.SetString("url", url);
-  AddEvent(event);
+  return event.release();
 }
 
-void MediaLog::AddEventOfType(MediaLogEvent::Type type) {
-  MediaLogEvent* event = CreateEvent(type);
-  AddEvent(event);
+MediaLogEvent* MediaLog::CreateBufferedExtentsChangedEvent(
+    size_t start, size_t current, size_t end) {
+  scoped_ptr<MediaLogEvent> event(
+      CreateEvent(MediaLogEvent::BUFFERED_EXTENTS_CHANGED));
+  event->params.SetInteger("buffer_start", start);
+  event->params.SetInteger("buffer_current", current);
+  event->params.SetInteger("buffer_end", end);
+  return event.release();
 }
 
 MediaLogEvent* MediaLog::CreateEvent(MediaLogEvent::Type type) {
-  MediaLogEvent* event = new MediaLogEvent;
+  scoped_ptr<MediaLogEvent> event(new MediaLogEvent);
   event->id = id_;
   event->type = type;
   event->time = base::Time::Now();
-  return event;
+  return event.release();
 }
 
 void MediaLog::AddEvent(MediaLogEvent* event) {
   scoped_ptr<MediaLogEvent> e(event);
 }
 
 }  //namespace media