Cast: Use 2 threads for encoding on capable systems

media/cast/cast_config.h

 // Copyright 2013 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 MEDIA_CAST_CAST_CONFIG_H_
 #define MEDIA_CAST_CAST_CONFIG_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 53 matching lines @@
 
   float congestion_control_back_off;
   int max_bitrate;
   int min_bitrate;
   int start_bitrate;
   int max_qp;
   int min_qp;
   int max_frame_rate;
   int max_number_of_video_buffers_used;  // Max value depend on codec.
   transport::VideoCodec codec;
-  int number_of_cores;
+  int number_of_encode_threads;
 };
 
 struct AudioReceiverConfig {
   AudioReceiverConfig();
 
   uint32 feedback_ssrc;
   uint32 incoming_ssrc;
 
   int rtcp_interval;
   std::string rtcp_c_name;
@@ skipping 65 matching lines @@
 typedef base::Callback<void(scoped_ptr<base::SharedMemory>)>
     ReceiveVideoEncodeMemoryCallback;
 typedef base::Callback<void(size_t size,
                             const ReceiveVideoEncodeMemoryCallback&)>
     CreateVideoEncodeMemoryCallback;
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_CONFIG_H_