[Media] Access bg video finch trial params directly from the renderer

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 2e5c40c51b3a27647263973f3e0e4f55ac280c45..1de98c2e0a5e59f1fe36bc49010ffef47da06b5e 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -548,15 +548,6 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs() {
   prefs.background_video_track_optimization_enabled =
       base::FeatureList::IsEnabled(media::kBackgroundVideoTrackOptimization);
 
-  // TODO(avayvod, asvitkine): Query the value directly when it is available in
-  // the renderer process. See https://crbug.com/681160.
-  prefs.max_keyframe_distance_to_disable_background_video =
-      base::TimeDelta::FromMilliseconds(
-          variations::GetVariationParamByFeatureAsInt(
-              media::kBackgroundVideoTrackOptimization,
-              "max_keyframe_distance_ms",
-              base::TimeDelta::FromSeconds(10).InMilliseconds()));
-
   // TODO(servolk, asvitkine): Query the value directly when it is available in
   // the renderer process. See https://crbug.com/681160.
   prefs.enable_instant_source_buffer_gc =