Make sure that scoped_ptr<> cannot be used with ref-counted objects.

chrome/common/service_process_util_mac.mm

Index: chrome/common/service_process_util_mac.mm
diff --git a/chrome/common/service_process_util_mac.mm b/chrome/common/service_process_util_mac.mm
index 7ea79261c0df8acc4d95d5dc9047c9a13764aed3..4100bcb0671fd2b635a3fb57edcb32b23bf5c237 100644
--- a/chrome/common/service_process_util_mac.mm
+++ b/chrome/common/service_process_util_mac.mm
@@ -319,13 +319,13 @@ bool ServiceProcessState::StateData::WatchExecutable() {
   }
 
   FilePath executable_path = FilePath([exe_path fileSystemRepresentation]);
-  scoped_ptr<ExecFilePathWatcherDelegate> delegate(
+  scoped_refptr<ExecFilePathWatcherDelegate> delegate(
       new ExecFilePathWatcherDelegate);
   if (!delegate->Init(executable_path)) {
     DLOG(ERROR) << "executable_watcher_.Init " << executable_path.value();
     return false;
   }
-  if (!executable_watcher_.Watch(executable_path, delegate.release())) {
+  if (!executable_watcher_.Watch(executable_path, delegate)) {
     DLOG(ERROR) << "executable_watcher_.watch " << executable_path.value();
     return false;
   }