[Files.app] Initial implementation of new audio player

chromeos/chromeos_switches.cc

Index: chromeos/chromeos_switches.cc
diff --git a/chromeos/chromeos_switches.cc b/chromeos/chromeos_switches.cc
index dc61a75099c070b98c35e04b9b8278bb90e626cd..a6f75702ea9cc7b5d2b453bb05b9c99618833b2a 100644
--- a/chromeos/chromeos_switches.cc
+++ b/chromeos/chromeos_switches.cc
@@ -127,6 +127,10 @@ const char kEnterpriseEnrollmentSkipRobotAuth[] =
 // Shows the selecting checkboxes in the Files.app.
 const char kFileManagerShowCheckboxes[]     = "file-manager-show-checkboxes";
 
+// Enables the new audio player in the Files.app.
+const char kFileManagerEnableNewAudioPlayer[] =
+    "file-manager-enable-new-audio-player";
+
 // Enables the webstore integration feature in the Files.app.
 const char kFileManagerEnableWebstoreIntegration[] =
     "file-manager-enable-webstore-integration";