[Media Router] Make per-hostname cast mode selections persist

chrome/browser/ui/webui/media_router/media_router_ui.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_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_UI_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 110 matching lines @@
   void ClearIssue(const Issue::Id& issue_id);
 
   // Calls MediaRouter to search route providers for sinks matching
   // |search_criteria| with the source that is currently associated with
   // |cast_mode|. The user's domain |domain| is also used.
   void SearchSinksAndCreateRoute(const MediaSink::Id& sink_id,
                                  const std::string& search_criteria,
                                  const std::string& domain,
                                  MediaCastMode cast_mode);
 
+  // Returns the cast mode that user has last chosen for the current hostname.
+  // If user hasn't chosen any, this returns MediaCastMode::DEFAULT.
+  MediaCastMode GetCastModeSelectionForCurrentHost() const;
+
+  // Records the cast mode selection for the current hostname, unless the cast
+  // mode is MediaCastMode::DESKTOP_MIRROR.
+  void RecordCastModeSelection(MediaCastMode cast_mode);
+
   // Returns the hostname of the default source's parent frame URL.
   std::string GetPresentationRequestSourceName() const;
   std::string GetTruncatedPresentationRequestSourceName() const;
   bool HasPendingRouteRequest() const {
     return current_route_request_id_ != -1;
   }
   const std::vector<MediaSinkWithCastModes>& sinks() const { return sinks_; }
   const std::vector<MediaRoute>& routes() const { return routes_; }
   const std::vector<MediaRoute::Id>& joinable_route_ids() const {
     return joinable_route_ids_;
@@ skipping 128 matching lines @@
       bool* incognito);
 
   // Updates the set of supported cast modes and sends the updated set to
   // |handler_|.
   void UpdateCastModes();
 
   // Returns the default presentation request's frame URL if there is one.
   // Otherwise returns an empty GURL.
   GURL GetFrameURL() const;
 
+  // Returns the hostname (e.g. "cs.chromium.org") for |initiator_|, or an empty
+  // string if |initiator_| is not set.
+  std::string GetInitiatorHostname() const;
+
   // Owned by the |web_ui| passed in the ctor, and guaranteed to be deleted
   // only after it has deleted |this|.
   MediaRouterWebUIMessageHandler* handler_;
 
   // These are non-null while this instance is registered to receive
   // updates from them.
   std::unique_ptr<IssuesObserver> issues_observer_;
   std::unique_ptr<MediaRoutesObserver> routes_observer_;
 
   // Set to true by |handler_| when the UI has been initialized.
@@ skipping 47 matching lines @@
   // NOTE: Weak pointers must be invalidated before all other member variables.
   // Therefore |weak_factory_| must be placed at the end.
   base::WeakPtrFactory<MediaRouterUI> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRouterUI);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_UI_H_