Disable background video track behind a feature flag

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 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/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 62 matching lines @@
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_features.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/drop_data.h"
 #include "content/public/common/file_chooser_file_info.h"
 #include "content/public/common/file_chooser_params.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/common/url_utils.h"
+#include "media/base/media_switches.h"
 #include "net/base/url_util.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/touch/touch_device.h"
 #include "ui/base/touch/touch_enabled.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/gfx/animation/animation.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/image/image_skia.h"
@@ skipping 426 matching lines @@
       plugin_mixed_content_status == "BlockableMixedContent";
 
   prefs.v8_cache_options = GetV8CacheOptions();
 
   prefs.user_gesture_required_for_presentation = !command_line.HasSwitch(
       switches::kDisableGestureRequirementForPresentation);
 
   if (delegate_ && delegate_->HideDownloadUI())
     prefs.hide_download_ui = true;
 
+  prefs.background_video_track_optimization_enabled =
+      base::FeatureList::IsEnabled(media::kBackgroundVideoTrackOptimization);
+
   std::map<std::string, std::string> expensive_background_throttling_prefs;
   variations::GetVariationParamsByFeature(
       features::kExpensiveBackgroundTimerThrottling,
       &expensive_background_throttling_prefs);
   SetFloatParameterFromMap(expensive_background_throttling_prefs, "cpu_budget",
                            &prefs.expensive_background_throttling_cpu_budget);
   SetFloatParameterFromMap(
       expensive_background_throttling_prefs, "initial_budget",
       &prefs.expensive_background_throttling_initial_budget);
   SetFloatParameterFromMap(expensive_background_throttling_prefs, "max_budget",
@@ skipping 534 matching lines @@
   } else {
     render_view_ready_on_process_launch_ = true;
   }
 }
 
 void RenderViewHostImpl::RenderViewReady() {
   delegate_->RenderViewReady(this);
 }
 
 }  // namespace content