Motown: Use new TimelineTransform and related definitions

mojo/services/media/audio/interfaces/audio_track.mojom

Index: mojo/services/media/audio/interfaces/audio_track.mojom
diff --git a/mojo/services/media/audio/interfaces/audio_track.mojom b/mojo/services/media/audio/interfaces/audio_track.mojom
index b9f251e62013d25f6426ec53c6372e456cc5d12e..b5cf8038e1017dd055c591a8e9b2c920d7e4c1eb 100644
--- a/mojo/services/media/audio/interfaces/audio_track.mojom
+++ b/mojo/services/media/audio/interfaces/audio_track.mojom
@@ -8,7 +8,7 @@ module mojo.media;
 import "mojo/services/media/common/interfaces/media_common.mojom";
 import "mojo/services/media/common/interfaces/media_transport.mojom";
 import "mojo/services/media/common/interfaces/media_types.mojom";
-import "mojo/services/media/common/interfaces/rate_control.mojom";
+import "mojo/services/media/core/interfaces/timeline_controller.mojom";
 
 struct AudioTrackDescriptor {
   // The track supports the union of all these media type sets.
@@ -50,8 +50,8 @@ interface AudioTrack {
   // Set the configuration, receive a pipe to send data to in return.
   Configure(AudioTrackConfiguration configuration, MediaConsumer& pipe);
 
-  // Request the rate control interface for this AudioTrack
-  GetRateControl(RateControl& rate_control);
+  // Request the timeline control site for this AudioTrack
+  GetTimelineControlSite(MediaTimelineControlSite& timeline_control_site);
 
   // Sets the current gain/attenuation of the track, expressed in dB.  Legal
   // values are in the range [-inf, 20.0].  Any value less than or equal to the