Update OS X to use scoped_refptr<T>::get() rather than implicit "operator T*"

sync/tools/sync_client.cc

Index: sync/tools/sync_client.cc
diff --git a/sync/tools/sync_client.cc b/sync/tools/sync_client.cc
index 21a46fdcb1497f6a81033034b44b3ee485c1bef9..1e5f2312e1dc6d265a278ef67d0c0964b0f1eb77 100644
--- a/sync/tools/sync_client.cc
+++ b/sync/tools/sync_client.cc
@@ -336,7 +336,7 @@ int SyncClientMain(int argc, char* argv[]) {
   // TODO(akalin): Replace this with just the context getter once
   // HttpPostProviderFactory is removed.
   scoped_ptr<HttpPostProviderFactory> post_factory(
-      new HttpBridgeFactory(context_getter,
+      new HttpBridgeFactory(context_getter.get(),
                             kUserAgent,
                             base::Bind(&StubNetworkTimeUpdateCallback)));
   // Used only when committing bookmarks, so it's okay to leave this