Bug 885025 - B2G: Add missing request in mozJSComponentLoader::UnloadModules. r=khuey

js/xpconnect/loader/mozJSComponentLoader.cpp

@@ -1126,6 +1126,7 @@ mozJSComponentLoader::UnloadModules()
     if (mLoaderGlobal) {
         MOZ_ASSERT(mReuseLoaderGlobal, "How did this happen?");
 
+        JSAutoRequest ar(mContext);
         RootedObject global(mContext, mLoaderGlobal->GetJSObject());
         if (global) {
             JS_SetAllNonReservedSlotsToUndefined(mContext, global);