Remove dead code related to media device enumerations and monitoring.

content/common/media/media_stream_options.cc

 // Copyright (c) 2012 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 "content/common/media/media_stream_options.h"
 
 #include "base/logging.h"
 
 namespace content {
 
@@ skipping 27 matching lines @@
 StreamControls::~StreamControls() {}
 
 // static
 const int StreamDeviceInfo::kNoId = -1;
 
 StreamDeviceInfo::StreamDeviceInfo()
     : session_id(kNoId) {}
 
 StreamDeviceInfo::StreamDeviceInfo(MediaStreamType service_param,
                                    const std::string& name_param,
+                                   const std::string& device_param)
+    : device(service_param, device_param, name_param), session_id(kNoId) {}
+
+StreamDeviceInfo::StreamDeviceInfo(MediaStreamType service_param,
+                                   const std::string& name_param,
                                    const std::string& device_param,
-                                   const std::string& group_param)
-    : device(service_param, device_param, name_param, group_param),
-      session_id(kNoId) {}
-
-StreamDeviceInfo::StreamDeviceInfo(MediaStreamType service_param,
-                                   const std::string& name_param,
-                                   const std::string& device_param)
-    : StreamDeviceInfo(service_param, name_param, device_param, std::string()) {
-}
-
-StreamDeviceInfo::StreamDeviceInfo(MediaStreamType service_param,
-                                   const std::string& name_param,
-                                   const std::string& device_param,
-                                   const std::string& group_param,
                                    int sample_rate,
                                    int channel_layout,
                                    int frames_per_buffer)
     : device(service_param,
              device_param,
              name_param,
-             group_param,
              sample_rate,
              channel_layout,
              frames_per_buffer),
       session_id(kNoId) {}
 
 // static
 bool StreamDeviceInfo::IsEqual(const StreamDeviceInfo& first,
                                const StreamDeviceInfo& second) {
   return first.device.IsEqual(second.device) &&
       first.session_id == second.session_id;
 }
 
 }  // namespace content