(Not for review) Dummy C++ side Custom Controls implementation

chrome/browser/media/router/mojo/media_router_mojo_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_IMPL_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_IMPL_H_
 
 #include <stdint.h>
 
 #include <deque>
@@ skipping 90 matching lines @@
       const SendRouteMessageCallback& callback) override;
   void AddIssue(const IssueInfo& issue_info) override;
   void ClearIssue(const Issue::Id& issue_id) override;
   void OnUserGesture() override;
   void SearchSinks(
       const MediaSink::Id& sink_id,
       const MediaSource::Id& source_id,
       const std::string& search_input,
       const std::string& domain,
       const MediaSinkSearchResponseCallback& sink_callback) override;
+  MediaRouteController* GetControllerForRoute(
+      const MediaRoute::Id& route_id) override;
+
+  bool GetMediaRouteController(const MediaRoute::Id& route_id,
+                               mojom::MediaControllerRequest controller);
+  void DestroyMediaRouteController(const MediaRoute::Id& route_id);
 
   const std::string& media_route_provider_extension_id() const {
     return media_route_provider_extension_id_;
   }
 
   void set_instance_id_for_test(const std::string& instance_id) {
     instance_id_ = instance_id;
   }
 
  private:
@@ skipping 237 matching lines @@
   // happen until the user is clearly interacting with MR.
   void OnFirewallCheckComplete(bool firewall_can_use_local_ports);
 #endif
 
   // Requests MRPM to update media sinks.  This allows MRPs that only do
   // discovery on sink queries an opportunity to update discovery results
   // even if the MRP SinkAvailability is marked UNAVAILABLE.
   void UpdateMediaSinks(const MediaSource::Id& source_id);
   void DoUpdateMediaSinks(const MediaSource::Id& source_id);
 
+  // Removes controllers from |route_controllers_| whose media routes do not
+  // appear in |routes|.
+  void RemoveInvalidMediaRouteControllers(
+      const std::vector<MediaRoute>& routes);
+
   // Pending requests queued to be executed once component extension
   // becomes ready.
   std::deque<base::Closure> pending_requests_;
 
   std::unordered_map<MediaSource::Id, std::unique_ptr<MediaSinksQuery>>
       sinks_queries_;
 
   std::unordered_map<MediaSource::Id, std::unique_ptr<MediaRoutesQuery>>
       routes_queries_;
 
@@ skipping 33 matching lines @@
   int wakeup_attempt_count_ = 0;
 
   // Records the current reason the extension is being woken up.  Is set to
   // MediaRouteProviderWakeReason::TOTAL_COUNT if there is no pending reason.
   MediaRouteProviderWakeReason current_wake_reason_;
 
   // A flag to ensure that we record the provider version once, during the
   // initial event page wakeup attempt.
   bool provider_version_was_recorded_ = false;
 
+  std::unordered_map<MediaRoute::Id, std::unique_ptr<MediaRouteController>>
+      route_controllers_;
+
 #if defined(OS_WIN)
   // A pair of flags to ensure that mDNS discovery is only enabled on Windows
   // when there will be appropriate context for the user to associate a firewall
   // prompt with Media Router. |should_enable_mdns_discovery_| can only go from
   // |false| to |true|. On Windows, |is_mdns_enabled_| is set to |false| in
   // RegisterMediaRouteProvider and only set to |true| when we successfully call
   // the extension to enable mDNS.
   bool is_mdns_enabled_ = false;
   bool should_enable_mdns_discovery_ = false;
 #endif
 
   base::WeakPtrFactory<MediaRouterMojoImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRouterMojoImpl);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_IMPL_H_