Reland "Letting Flash join MediaSession (stack implementaion)"

content/browser/media/session/media_session_browsertest.cc

Index: content/browser/media/session/media_session_browsertest.cc
diff --git a/content/browser/media/session/media_session_browsertest.cc b/content/browser/media/session/media_session_browsertest.cc
index bf49031b61a1ee875e4372b5b245acbab85acd1a..629c562c0f6babac2e10fbee35735d803e9a93d3 100644
--- a/content/browser/media/session/media_session_browsertest.cc
+++ b/content/browser/media/session/media_session_browsertest.cc
@@ -114,7 +114,7 @@ class MediaSessionBrowserTest : public content::ContentBrowserTest {
   bool HasAudioFocus() { return media_session_->IsActiveForTest(); }
 
   content::AudioFocusManager::AudioFocusType GetSessionAudioFocusType() {
-    return media_session_->audio_focus_type_for_test();
+    return media_session_->audio_focus_type();
   }
 
   bool IsControllable() { return media_session_->IsControllable(); }