--- a/layout/build/nsLayoutStatics.cpp
+++ b/layout/build/nsLayoutStatics.cpp
@@ -257,22 +257,17 @@ nsLayoutStatics::Initialize()
   nsRefreshDriver::InitializeStatics();
 
   nsCORSListenerProxy::Startup();
 
   nsFrameList::Init();
 
   NS_SealStaticAtomTable();
 
-// TODO: DOM_MEMORY_REPORTER should not be defined in a regular build for the
-// moment. This protection will be removed when bug 663271 will be close enough
-// to a shippable state.
-#ifdef DOM_MEMORY_REPORTER
   nsDOMMemoryReporter::Init();
-#endif
 
   return NS_OK;
 }
 
 void
 nsLayoutStatics::Shutdown()
 {
   // Don't need to shutdown nsDOMMemoryReporter, that will be done by the memory