Bug 1457920: Remove EnabledStateChanged. r=xidorn

MozReview-Commit-ID: DXSw93Q2vvK

layout/style/StyleSheet.cpp

@@ -244,7 +244,6 @@ StyleSheet::SetEnabled(bool aEnabled)
   mDisabled = !aEnabled;
 
   if (IsComplete() && oldDisabled != mDisabled) {
-    EnabledStateChanged();
     ApplicableStateChanged(!mDisabled);
   }
 }

layout/style/StyleSheet.h

@@ -382,11 +382,6 @@ protected:
 
   void ApplicableStateChanged(bool aApplicable);
 
-  // Called from SetEnabled when the enabled state changed.
-  //
-  // FIXME(emilio): Remove.
-  void EnabledStateChanged() { };
-
   struct ChildSheetListBuilder {
     RefPtr<StyleSheet>* sheetSlot;
     StyleSheet* parent;