Media Remoting: Add mojo interfaces between browser and extension.

media/mojo/interfaces/remoting.mojom

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module media.mojom;
 
+import "media/mojo/interfaces/remoting_common.mojom";
+
 interface RemoterFactory {
   // Create a new Remoter associated with the given RemotingSource and bind it
   // to the given interface request. The RemotingSource will be notified when
   // the Remoter becomes available for use (or becomes unavailable).
   Create(RemotingSource source, Remoter& remoter);
 };
 
 // Interface used by the source to control when media bitstream data is read
 // from a data pipe and then sent to the remote endpoint. There is one
 // RemotingDataStreamSender per data pipe.
@@ skipping 17 matching lines @@
 
   // Cancel the transmission of all in-flight data to the remote, up to and
   // including the last SendFrame() call; and also discard any data chunks
   // that were consumed from the data pipe for the next frame. This is used to
   // optimize seeking, when it is known that any in-flight data is no longer
   // needed by the remote. There is no guarantee as to how much of the in-flight
   // data will actually reach the remote before the cancellation takes effect.
   CancelInFlightData();
 };
 
-enum RemotingStopReason {
-  ROUTE_TERMINATED,  // User-initiated disconnect, etc.
-  LOCAL_PLAYBACK,  // Media switched back to local playback.
-  SOURCE_GONE,  // RemotingSource has been destroyed.
-  MESSAGE_SEND_FAILED,  // Failed to send a message to the sink.
-  DATA_SEND_FAILED,  // Failed to consume from a data pipe or send to the sink.
-  UNEXPECTED_FAILURE,  // Unexpected failure or inconsistent state encountered.
-};
-
 // Interface used by the source to start/stop remoting and send data to the
 // sink.
 interface Remoter {
   // Start a remoting session (once the sink has been reported to be available;
   // see RemotingSource). Either RemotingSource.OnStarted() or OnStartFailed()
   // will be called to indicate success or failure. Once OnStarted() has been
   // invoked, the source may then make calls to SendMessageToSink() and expect
   // messages from the remote via RemotingSource.OnMessageFromSink().
   Start();
 
@@ skipping 10 matching lines @@
 
   // Stop remoting media. Messages in both directions will be dropped after this
   // point as well as any pending or in-transit media bitstream data.
   Stop(RemotingStopReason reason);
 
   // Send |message| to the sink. |message| is a serialized protobuf from
   // src/media/remoting/proto.
   SendMessageToSink(array<uint8> message);
 };
 
-enum RemotingSinkCapabilities {
-  NONE,
-  RENDERING_ONLY,
-  CONTENT_DECRYPTION_AND_RENDERING,
-};
-
-enum RemotingStartFailReason {
-  CANNOT_START_MULTIPLE,  // Remoting was already active.
-  ROUTE_TERMINATED,  // User-initated disconnect while starting remoting.
-};
-
 // Interface used for sending notifications back to the local source's control
 // logic, and to pass messages from the sink back to the local media pipeline.
 interface RemotingSource {
   // Notify the source that the sink is now available to start remoting. It is
   // up to the source's control logic to decide whether/when to start remoting.
   //
   // TODO(miu): In a later change, pass detailed information about the sink's
   // capabilities (e.g., codec support, DRM keysystem support, etc.).
   OnSinkAvailable(RemotingSinkCapabilities capabilities);
 
@@ skipping 13 matching lines @@
   // Pass a |message| from the sink back to the source. The |message| consists
   // of a serialized protobuf from src/media/remoting/proto. This will only be
   // called after OnStarted() and before OnStopped().
   OnMessageFromSink(array<uint8> message);
 
   // Notify the source that remoting has terminated. This may or may not be in
   // response to a Remoter.Stop() call, as other events (possibly external) may
   // have caused remoting to end.
   OnStopped(RemotingStopReason reason);
 };