Cast: Allow extension to control wifi options on windows

media/cast/net/cast_transport_sender_impl.cc

 // Copyright 2014 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.
 
 #include "media/cast/net/cast_transport_sender_impl.h"
 
 #include "base/single_thread_task_runner.h"
 #include "base/values.h"
 #include "media/cast/net/cast_transport_config.h"
 #include "media/cast/net/cast_transport_defines.h"
@@ skipping 68 matching lines @@
   }
   if (transport_) {
     if (options->HasKey("DSCP")) {
       // The default DSCP value for cast is AF41. Which gives it a higher
       // priority over other traffic.
       transport_->SetDscp(net::DSCP_AF41);
     }
     transport_->StartReceiving(
         base::Bind(&CastTransportSenderImpl::OnReceivedPacket,
                    weak_factory_.GetWeakPtr()));
+    int wifi_options;
+    if (options->HasKey("DISABLE_WIFI_SCAN")) {

[Alpha Left Google, 2014/09/15 20:12:29]

Note that the pacer options are using lowercase name for the key. These should
probably be lower case to be consistent.

[hubbe, 2014/09/15 23:11:49]

Done.

+      wifi_options |= net::WIFI_OPTIONS_DISABLE_SCAN;
+    }
+    if (options->HasKey("MEDIA_STREAMING_MODE")) {
+      wifi_options |= net::WIFI_OPTIONS_MEDIA_STREAMING_MODE;
+    }
+    if (wifi_options) {
+      wifi_options_autoreset_ = net::SetWifiOptions(wifi_options);
+    }
   }
 }
 
 CastTransportSenderImpl::~CastTransportSenderImpl() {
   if (event_subscriber_.get())
     logging_.RemoveRawEventSubscriber(event_subscriber_.get());
 }
 
 void CastTransportSenderImpl::InitializeAudio(
     const CastTransportRtpConfig& config,
@@ skipping 264 matching lines @@
   // 2. Specifies a deduplication window. For video this would be the most
   //    recent RTT. For audio there is no deduplication.
   ResendPackets(ssrc,
                 cast_message.missing_frames_and_packets,
                 true,
                 dedup_info);
 }
 
 }  // namespace cast
 }  // namespace media