Revert "Revert "Const-ify RefCountedThreadSafe::AddRef and Release.""

base/message_loop.h

Index: base/message_loop.h
diff --git a/base/message_loop.h b/base/message_loop.h
index 94e0096e1ee341349dd095765a8229c8bd36e456..37e4b81b5e45a2c5db26a91487c47d032c7ae90b 100644
--- a/base/message_loop.h
+++ b/base/message_loop.h
@@ -146,7 +146,7 @@ class MessageLoop : public base::MessagePump::Delegate {
   // as the thread that calls PostDelayedTask(FROM_HERE, ), then T MUST inherit
   // from RefCountedThreadSafe<T>!
   template <class T>
-  void DeleteSoon(const tracked_objects::Location& from_here, T* object) {
+  void DeleteSoon(const tracked_objects::Location& from_here, const T* object) {
     PostNonNestableTask(from_here, new DeleteTask<T>(object));
   }
 
@@ -161,7 +161,8 @@ class MessageLoop : public base::MessagePump::Delegate {
   // PostDelayedTask(FROM_HERE, ), then T MUST inherit from
   // RefCountedThreadSafe<T>!
   template <class T>
-  void ReleaseSoon(const tracked_objects::Location& from_here, T* object) {
+  void ReleaseSoon(const tracked_objects::Location& from_here,
+                   const T* object) {
     PostNonNestableTask(from_here, new ReleaseTask<T>(object));
   }