Flip unified media pipeline to default-on w/ disabled holdback.

media/base/media_switches.cc

Index: media/base/media_switches.cc
diff --git a/media/base/media_switches.cc b/media/base/media_switches.cc
index 160364365a4eca46f43388c3a7eaf3996ce369cd..06c85655b71dad86f2125bd4e4654b847bac3171 100644
--- a/media/base/media_switches.cc
+++ b/media/base/media_switches.cc
@@ -22,13 +22,13 @@ const char kDisableMediaSuspend[] = "disable-media-suspend";
 const char kDisableMediaThreadForMediaPlayback[] =
     "disable-media-thread-for-media-playback";
 
+// Use WebMediaPlayerAndroid instead of WebMediaPlayerImpl. This is a temporary
+// switch for holding back the new unified media pipeline.
+const char kDisableUnifiedMediaPipeline[] = "disable-unified-media-pipeline";
+
 // Sets the MediaSource player that uses the separate media thread
 const char kEnableMediaThreadForMediaPlayback[] =
     "enable-media-thread-for-media-playback";
-
-// Use WebMediaPlayerImpl instead of WebMediaPlayerAndroid. This is a temporary
-// switch for experimenting with unifying the Android playback pipeline.
-const char kEnableUnifiedMediaPipeline[] = "enable-unified-media-pipeline";
 #endif
 
 #if defined(OS_LINUX) || defined(OS_FREEBSD) || defined(OS_SOLARIS)