Rename --enable-default-media-session to --enable-audio-focus.

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 0f058a483ad97c266a52102c6c1a9bf89b4e236b..d6c5b46872226ba36533e0f60158d3f228cf9876 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2655,16 +2655,16 @@ const char kExpensiveBackgroundTimerThrottlingDescription[] =
 
 #if !defined(OS_ANDROID)
 
-const char kEnableDefaultMediaSessionName[] = "Manage audio focus across tabs";
+const char kEnableAudioFocusName[] = "Manage audio focus across tabs";
 
-const char kEnableDefaultMediaSessionDescription[] =
+const char kEnableAudioFocusDescription[] =
     "Manage audio focus across tabs to improve the audio mixing.";
 
-const char kEnableDefaultMediaSessionDisabled[] = "Disabled";
+const char kEnableAudioFocusDisabled[] = "Disabled";
 
-const char kEnableDefaultMediaSessionEnabled[] = "Enabled";
+const char kEnableAudioFocusEnabled[] = "Enabled";
 
-const char kEnableDefaultMediaSessionEnabledDuckFlash[] =
+const char kEnableAudioFocusEnabledDuckFlash[] =
     "Enabled (Flash lowers volume when interrupted by other sound, "
     "experimental)";