1 files changed, 0 insertions, 5 deletions
diff --git a/dom/base/nsGlobalWindow.h b/dom/base/nsGlobalWindow.h
index 1cb825a77..1f420895c 100644
--- a/dom/base/nsGlobalWindow.h
+++ b/dom/base/nsGlobalWindow.h
@@ -1780,11 +1780,6 @@ protected:
   // Window offline status. Checked to see if we need to fire offline event
   bool                          mWasOffline : 1;
 
-  // Represents whether the inner window's page has had a slow script notice.
-  // Only used by inner windows; will always be false for outer windows.
-  // This is used to implement Telemetry measures such as SLOW_SCRIPT_PAGE_COUNT.
-  bool                          mHasHadSlowScript : 1;
-
   // Track what sorts of events we need to fire when thawed
   bool                          mNotifyIdleObserversIdleOnThaw : 1;
   bool                          mNotifyIdleObserversActiveOnThaw : 1;