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

chrome/common/service_process_util.cc

Index: chrome/common/service_process_util.cc
diff --git a/chrome/common/service_process_util.cc b/chrome/common/service_process_util.cc
index 489610a9893aa0683dbd486e9e6caaba68055269..81899b65534409cd07de3e5e8525e5ec05f58575 100644
--- a/chrome/common/service_process_util.cc
+++ b/chrome/common/service_process_util.cc
@@ -6,6 +6,7 @@
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
+#include "base/singleton.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ -156,6 +157,11 @@ ServiceProcessState::~ServiceProcessState() {
   TearDownState();
 }
 
+// static
+ServiceProcessState* ServiceProcessState::GetInstance() {
+  return Singleton<ServiceProcessState>::get();
+}
+
 bool ServiceProcessState::Initialize() {
   if (!TakeSingletonLock()) {
     return false;