Merge "AVRCP: fix crash on callback with no player"

    private void setAddressedMediaSessionPackage(String packageName) {

        if (DEBUG) Log.v(TAG, "Setting addressed media session to " + packageName);

        // Can't set no player, that handled by onActiveSessionsChanged

        if (packageName == null) return;

        if (packageName == null) {

            // Should only happen when there's no media players, reset to no available player.

            updateCurrentController(0, mCurrBrowsePlayerID);

            return;

        }

        // No change.

        if (getPackageName(mCurrAddrPlayerID).equals(packageName)) return;

        // If the player doesn't exist, we need to add it.

                @Override

                public void onAddressedPlayerChanged(ComponentName receiver) {

                    // We only get this if there isn't an active media session.

                    // We can still get a passthrough.

                    if (receiver == null) {

                        // No active sessions, and no session to revive, give up.

                        setAddressedMediaSessionPackage(null);

                        return;

                    }

                    // We can still get a passthrough which will revive this player.

                    setAddressedMediaSessionPackage(receiver.getPackageName());

                }

            };