Experiment with more aggressive MSE GC on memory pressure

media/blink/webmediaplayer_params.cc

Index: media/blink/webmediaplayer_params.cc
diff --git a/media/blink/webmediaplayer_params.cc b/media/blink/webmediaplayer_params.cc
index 917261ffd5f6c3d4f9fabc03d45abf2f3542ccbd..b6e1ec2628cf6784eaee97e5c7a449864b2fe78f 100644
--- a/media/blink/webmediaplayer_params.cc
+++ b/media/blink/webmediaplayer_params.cc
@@ -23,7 +23,8 @@ WebMediaPlayerParams::WebMediaPlayerParams(
     blink::WebContentDecryptionModule* initial_cdm,
     SurfaceManager* surface_manager,
     base::WeakPtr<MediaObserver> media_observer,
-    base::TimeDelta max_keyframe_distance_to_disable_background_video)
+    base::TimeDelta max_keyframe_distance_to_disable_background_video,
+    bool enable_instant_source_buffer_gc)
     : defer_load_cb_(defer_load_cb),
       audio_renderer_sink_(audio_renderer_sink),
       media_log_(media_log),
@@ -36,7 +37,8 @@ WebMediaPlayerParams::WebMediaPlayerParams(
       surface_manager_(surface_manager),
       media_observer_(media_observer),
       max_keyframe_distance_to_disable_background_video_(
-          max_keyframe_distance_to_disable_background_video) {}
+          max_keyframe_distance_to_disable_background_video),
+      enable_instant_source_buffer_gc_(enable_instant_source_buffer_gc) {}
 
 WebMediaPlayerParams::~WebMediaPlayerParams() {}