Bug 1343557 - Make operator AutoCreateAndDestroyReentrantMonitor::ReentrantMonitor* const; r=bsmedberg

MozReview-Commit-ID: Fy3k5fvEs5J

--HG--
extra : rebase_source : 52b9939a66bc828ca2609921300026b65d54f8e5

xpcom/tests/gtest/TestTimers.cpp

@@ -66,7 +66,7 @@ public:
     delete mReentrantMonitor;
   }
 
-  operator ReentrantMonitor* () {
+  operator ReentrantMonitor* () const {
     return mReentrantMonitor;
   }