[Media Router] Add features to control browser side discovery

chrome/common/media_router/mojo/media_router.mojom

 // Copyright 2015 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_router.mojom;
 
 import "chrome/common/media_router/mojo/media_controller.mojom";
 import "chrome/common/media_router/mojo/media_status.mojom";
 import "mojo/common/time.mojom";
 import "net/interfaces/ip_address.mojom";
@@ skipping 169 matching lines @@
   TIMED_OUT,
   ROUTE_NOT_FOUND,
   SINK_NOT_FOUND,
   INVALID_ORIGIN,
   INCOGNITO_MISMATCH,
   NO_SUPPORTED_PROVIDER,
   CANCELLED
 // New values must be added here.
 };
 
+// Used to pass feature configuration data from the Browser to Media Route
+// Provider.
+struct MediaRouteProviderConfig {
+  // If the MRP should enable DIAL discovery.
+  bool enable_dial_discovery;
+
+  // If the MRP should enable Cast discovery.
+  bool enable_cast_discovery;
+};
+
 // Modeled after the MediaRouter interface defined in
 // chrome/browser/media/router/media_router.h
 interface MediaRouteProvider {
   // Creates a media route from |media_source| to the sink given by |sink_id|.
   //
   // The presentation ID of the route created will be |presentation_id|, but it
   // may be overridden by a provider implementation. The presentation ID will
   // be used by the presentation API to refer to the created route.
   //
   // |origin| and |tab_id| may be passed in for enforcing same-origin and/or
@@ skipping 216 matching lines @@
   enum PresentationConnectionCloseReason {
     CONNECTION_ERROR,
     CLOSED,
     WENT_AWAY
   };
 
   // Registers a MediaRouteProvider with the MediaRouter.
   // Returns a string that uniquely identifies the Media Router browser
   // process.
   RegisterMediaRouteProvider(MediaRouteProvider media_router_provider) =>
-      (string instance_id);
+      (string instance_id, MediaRouteProviderConfig config);
 
   // Called when the Media Route Manager receives a new list of |sinks|
   // compatible with |media_source|. The result is only valid for |origins|. If
   // |origins| is empty, the result is valid for any origin.
   OnSinksReceived(string media_source, array<MediaSink> sinks,
       array<url.mojom.Origin> origins);
 
   // Called when issues are reported for media routes.
   OnIssue(Issue issue);
 
@@ skipping 18 matching lines @@
 
   // Called when the a batch of messages arrives from the media sink for the
   // route given by |route_id|.
   // |StartListeningForRouteMessages| must be called first in order to receive
   // messages.
   // |route_id|: ID of route of the messages.
   // |messages|: A non-empty list of messages received.
   OnRouteMessagesReceived(string route_id,
                           array<RouteMessage> messages);
 };