Add a new GetInstance() method for singleton classes under chrome/service and /net.

net/socket_stream/socket_stream_job.cc

Index: net/socket_stream/socket_stream_job.cc
diff --git a/net/socket_stream/socket_stream_job.cc b/net/socket_stream/socket_stream_job.cc
index 8d1da736ddb6d7bacfd501d7a22c792fae64dded..66362339cb00c834374386d138707d1bf5e27aef 100644
--- a/net/socket_stream/socket_stream_job.cc
+++ b/net/socket_stream/socket_stream_job.cc
@@ -9,20 +9,17 @@
 
 namespace net {
 
-static SocketStreamJobManager* GetJobManager() {
-  return Singleton<SocketStreamJobManager>::get();
-}
-
 // static
 SocketStreamJob::ProtocolFactory* SocketStreamJob::RegisterProtocolFactory(
     const std::string& scheme, ProtocolFactory* factory) {
-  return GetJobManager()->RegisterProtocolFactory(scheme, factory);
+  return SocketStreamJobManager::GetInstance()->RegisterProtocolFactory(
+      scheme, factory);
 }
 
 // static
 SocketStreamJob* SocketStreamJob::CreateSocketStreamJob(
     const GURL& url, SocketStream::Delegate* delegate) {
-  return GetJobManager()->CreateJob(url, delegate);
+  return SocketStreamJobManager::GetInstance()->CreateJob(url, delegate);
 }
 
 SocketStreamJob::SocketStreamJob() {}