Merge "MediaRouter: clear session info when disconnected"

media/java/android/media/MediaRouter2Manager.java

@@ -247,13 +247,23 @@ public class MediaRouter2Manager {
         Objects.requireNonNull(packageName, "packageName must not be null");
         Objects.requireNonNull(route, "route must not be null");
 
+        boolean transferred = false;
+        //TODO: instead of release all controllers, add an API to specify controllers that
+        // should be released (or is the system controller).
         for (RoutingController controller : getRoutingControllers(packageName)) {
-            if (controller.getSessionInfo().getTransferrableRoutes().contains(route.getId())) {
+            if (!transferred && controller.getSessionInfo().getTransferrableRoutes()
+                    .contains(route.getId())) {
                 controller.transferToRoute(route);
-                return;
+                transferred = true;
+            } else if (!controller.getSessionInfo().isSystemSession()) {
+                controller.release();
             }
         }
 
+        if (transferred) {
+            return;
+        }
+
         Client client;
         synchronized (sLock) {
             client = mClient;

services/core/java/com/android/server/media/MediaRoute2ProviderProxy.java

@@ -411,6 +411,12 @@ final class MediaRoute2ProviderProxy extends MediaRoute2Provider implements Serv
             mActiveConnection.dispose();
             mActiveConnection = null;
             setAndNotifyProviderState(null);
+            synchronized (mLock) {
+                for (RoutingSessionInfo sessionInfo : mSessionInfos) {
+                    mCallback.onSessionReleased(this, sessionInfo);
+                }
+                mSessionInfos.clear();
+            }
         }
     }