Merge m-c to a CLOSED TREE m-i

MozReview-Commit-ID: BrsSHyBv1nf

testing/mozharness/mozharness/base/python.py

@@ -427,6 +427,7 @@ class VirtualenvMixin(object):
             self.run_command(virtualenv + virtualenv_options + [venv_path],
                              cwd=dirs['abs_work_dir'],
                              error_list=VirtualenvErrorList,
+                             partial_env={'VIRTUALENV_NO_DOWNLOAD': "1"},
                              halt_on_failure=True)
 
         # Resolve the pip version so we can conditionally do things if we have

xpcom/threads/nsThread.cpp

@@ -1046,8 +1046,7 @@ nsThread::HasPendingEvents(bool* aResult)
 
   {
     MutexAutoLock lock(mLock);
-    *aResult = mEvents->HasPendingEvent(lock) ||
-               mIdleEvents.HasPendingEvent(lock);
+    *aResult = mEvents->HasPendingEvent(lock);
   }
   return NS_OK;
 }