multibuffer field trial

media/blink/webmediaplayer_impl.cc

 // Copyright 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 "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 273 matching lines @@
   SetReadyState(WebMediaPlayer::ReadyStateHaveNothing);
   media_log_->AddEvent(media_log_->CreateLoadEvent(url.string().utf8()));
 
   // Media source pipelines can start immediately.
   if (load_type == LoadTypeMediaSource) {
     supports_save_ = false;
     StartPipeline();
     return;
   }
 
+  // TODO(hubbe): This experiment is temporary and should be removed once
+  // we have enough data to support the primacy of the new media cache.
+  // See http://crbug.com/514719 for details.
   // Otherwise it's a regular request which requires resolving the URL first.
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseNewMediaCache)) {
+  if (base::FeatureList::IsEnabled(kUseNewMediaCache)) {
     // Remove this when MultiBufferDataSource becomes default.
     LOG(WARNING) << "Using MultibufferDataSource";
     data_source_.reset(new MultibufferDataSource(
         url, static_cast<UrlData::CORSMode>(cors_mode), main_task_runner_,
         url_index_, frame_, media_log_.get(), &buffered_data_source_host_,
         base::Bind(&WebMediaPlayerImpl::NotifyDownloading, AsWeakPtr())));
   } else {
     data_source_.reset(new BufferedDataSource(
         url, static_cast<BufferedResourceLoader::CORSMode>(cors_mode),
         main_task_runner_, frame_, media_log_.get(),
@@ skipping 1234 matching lines @@
            << ", Video: " << stats.video_memory_usage << ", DataSource: "
            << (data_source_ ? data_source_->GetMemoryUsage() : 0)
            << ", Demuxer: " << demuxer_memory_usage;
 
   const int64_t delta = current_memory_usage - last_reported_memory_usage_;
   last_reported_memory_usage_ = current_memory_usage;
   adjust_allocated_memory_cb_.Run(delta);
 }
 
 }  // namespace media