Revert 150491 - refactor EnumerateDevices to make it a persistent request.

content/common/media/media_stream_options.cc

Index: content/common/media/media_stream_options.cc
===================================================================
--- content/common/media/media_stream_options.cc	(revision 150592)
+++ content/common/media/media_stream_options.cc	(working copy)
@@ -24,14 +24,4 @@
       in_use(opened),
       session_id(kNoId) {}
 
-// static
-bool StreamDeviceInfo::IsEqual(const StreamDeviceInfo& first,
-                               const StreamDeviceInfo& second) {
-  return first.stream_type == second.stream_type &&
-      first.name == second.name &&
-      first.device_id == second.device_id &&
-      first.in_use == second.in_use &&
-      first.session_id == second.session_id;
-}
-
 }  // namespace media_stream