[Cleanup] Move all browsertests to use ScopedFeatureList to modify features

content/browser/media/session/media_session_impl_visibility_browsertest.cc

Index: content/browser/media/session/media_session_impl_visibility_browsertest.cc
diff --git a/content/browser/media/session/media_session_impl_visibility_browsertest.cc b/content/browser/media/session/media_session_impl_visibility_browsertest.cc
index a5ad0b02355f8a76b1e74939e046ddf11099b063..3401f4fc898b338f26bba3a6caa2aa2901bc797e 100644
--- a/content/browser/media/session/media_session_impl_visibility_browsertest.cc
+++ b/content/browser/media/session/media_session_impl_visibility_browsertest.cc
@@ -109,13 +109,8 @@ class MediaSessionImplVisibilityBrowserTest
     else
       command_line->AppendSwitch(switches::kDisableMediaSuspend);
 
-    if (params.background_resuming == BackgroundResuming::ENABLED) {
-      command_line->AppendSwitchASCII(switches::kEnableFeatures,
-                                      media::kResumeBackgroundVideo.name);
-    } else {
-      command_line->AppendSwitchASCII(switches::kDisableFeatures,
-                                      media::kResumeBackgroundVideo.name);
-    }
+    EnableDisableResumingBackgroundVideos(params.background_resuming ==
+                                          BackgroundResuming::ENABLED);
   }
 
   const VisibilityTestData& GetVisibilityTestData() {