[Media Router] Add ProvideSinks() Mojo API

chrome/browser/media/router/discovery/media_sink_internal.h

 // Copyright 2017 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.
 
 #ifndef CHROME_BROWSER_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_INTERNAL_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_INTERNAL_H_
 
 #include "chrome/browser/media/router/media_sink.h"
 #include "net/base/ip_address.h"
 #include "url/gurl.h"
 
 namespace media_router {
 
 // Extra data for DIAL media sink.
 struct DialSinkExtraData {
   net::IPAddress ip_address;
 
   // Model name of the sink.
   std::string model_name;
 
   // The base URL used for DIAL operations.
   GURL app_url;
 
   DialSinkExtraData();
   DialSinkExtraData(const DialSinkExtraData& other);
   ~DialSinkExtraData();
+
+  bool operator==(const DialSinkExtraData& other) const;
 };
 
 // Extra data for cast media sink.
 struct CastSinkExtraData {
   net::IPAddress ip_address;
 
   // Model name of the sink.
   std::string model_name;
 
   // A bit vector representing the capabilities of the sink. The values are
   // defined in media_router.mojom.
   int capabilities = 0;
 
   // ID of Cast channel opened for the sink. The caller must set this value to a
   // valid cast_channel_id. The cast_channel_id may change over time as the
   // browser reconnects to a device.
   int cast_channel_id = 0;
 
   CastSinkExtraData();
   CastSinkExtraData(const CastSinkExtraData& other);
   ~CastSinkExtraData();
+
+  bool operator==(const CastSinkExtraData& other) const;
 };
 
 // Represents a media sink discovered by MediaSinkService. It is used by
 // MediaSinkService to push MediaSinks with extra data to the
 // MediaRouteProvider, and it is not exposed to users of MediaRouter.
 class MediaSinkInternal {
  public:
   // Used by mojo.
   MediaSinkInternal();
 
   // Used by unit test.
   explicit MediaSinkInternal(const MediaSink& sink);
 
   // Used by MediaSinkService to create media sinks.
   MediaSinkInternal(const MediaSink& sink, const DialSinkExtraData& dial_data);
   MediaSinkInternal(const MediaSink& sink, const CastSinkExtraData& cast_data);
 
   // Used to push instance of this class into vector.
   MediaSinkInternal(const MediaSinkInternal& other);
 
   ~MediaSinkInternal();
 
   MediaSinkInternal& operator=(const MediaSinkInternal& other);
 
+  bool operator==(const MediaSinkInternal& other) const;
+
   void set_sink(const MediaSink& sink);
   const MediaSink& sink() const { return sink_; }
 
   void set_dial_data(const DialSinkExtraData& dial_data);
 
   // Must only be called if the sink is a DIAL sink.
   const DialSinkExtraData& dial_data() const;
 
   void set_cast_data(const CastSinkExtraData& cast_data);
 
@@ skipping 11 matching lines @@
   // Set if sink is DIAL sink.
   base::Optional<DialSinkExtraData> dial_data_;
 
   // Set if sink is Cast sink.
   base::Optional<CastSinkExtraData> cast_data_;
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_INTERNAL_H_