Cast: Allow extension to control wifi options on windows

media/cast/net/cast_transport_sender_impl.h

Index: media/cast/net/cast_transport_sender_impl.h
diff --git a/media/cast/net/cast_transport_sender_impl.h b/media/cast/net/cast_transport_sender_impl.h
index 1eb8bca1caedb5d07e6e30e429f9f4d49650c5b9..cff5561e2838b785df40d646782027249f7f9dff 100644
--- a/media/cast/net/cast_transport_sender_impl.h
+++ b/media/cast/net/cast_transport_sender_impl.h
@@ -56,11 +56,14 @@ class CastTransportSenderImpl : public CastTransportSender {
   // |raw_events_callback| is a null callback.
   // |options| contains optional settings for the transport, possible
   // keys are:
-  //   "DSCP" (value doesn't matter) - turns DSCP on
+  //   "DSCP" (value ignored) - turns DSCP on
   //   "pacer_target_burst_size": int - specifies how many packets to send
   //                                    per 10 ms ideally.
   //   "pacer_max_burst_size": int - specifies how many pakcets to send
   //                                 per 10 ms, max
+  //   "disable_wifi_scan" (value ignored) - disable wifi scans while streaming
+  //   "media_streaming_mode" (value ignored) - turn media streaming mode on
+  // Note, these options may be ignored on some platforms.
   CastTransportSenderImpl(
       net::NetLog* net_log,
       base::TickClock* clock,
@@ -165,6 +168,8 @@ class CastTransportSenderImpl : public CastTransportSender {
   // audio packet.
   int64 last_byte_acked_for_audio_;
 
+  scoped_ptr<net::ScopedWifiOptions> wifi_options_autoreset_;
+
   base::WeakPtrFactory<CastTransportSenderImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastTransportSenderImpl);