cros: Enable new cras audio handler by default

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 2bf06c417d91909d94e7bf1b4502f514a8ceca23..45ffc83f47c419e0a2ae4345d9ae1e0886528c75 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6805,6 +6805,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ASH_ENABLE_NEW_AUDIO_HANDLER_DESCRIPTION" desc="Description for the flag to enable using the new audio handler.">
         Enable the new audio handler which uses the new cras audio dbus apis.
       </message>
+      <message name="IDS_FLAGS_ASH_AUDIO_DEVICE_MENU_NAME" desc="Title for a flag for audio switching.">
+        Audio input/output menu
+      </message>
+      <message name="IDS_FLAGS_ASH_AUDIO_DEVICE_MENU_DESCRIPTION" desc="Description for a flag for audio switching.">
+        Modifies the volume item in the status tray to add a menu allowing choosing a specific audio input and output device. Requires "Enable new audio handler" flag.  
+      </message>
       <message name="IDS_FLAGS_ENABLE_LOCALLY_MANAGED_USERS_NAME" desc="Title for the flag to enable locally managed users.">
         Enable locally managed users
       </message>