Bug 1386865 part 1 - Have GetServoStyleSet return non-const ServoStyleSet. r=TYLin

MozReview-Commit-ID: IOlcThK3PAr

--HG--
extra : rebase_source : 6664f5f988ec0c2cdb5b21d61585da84131dc618

dom/xbl/nsXBLBinding.cpp

@@ -869,7 +869,7 @@ nsXBLBinding::WalkRules(nsIStyleRuleProcessor::EnumFunc aFunc, void* aData)
     (*aFunc)(rules, aData);
 }
 
-const ServoStyleSet*
+ServoStyleSet*
 nsXBLBinding::GetServoStyleSet() const
 {
   return mPrototypeBinding->GetServoStyleSet();

dom/xbl/nsXBLBinding.h

@@ -130,7 +130,7 @@ public:
 
   void WalkRules(nsIStyleRuleProcessor::EnumFunc aFunc, void* aData);
 
-  const mozilla::ServoStyleSet* GetServoStyleSet() const;
+  mozilla::ServoStyleSet* GetServoStyleSet() const;
 
   static nsresult DoInitJSClass(JSContext *cx, JS::Handle<JSObject*> obj,
                                 const nsString& aClassName,

dom/xbl/nsXBLPrototypeBinding.cpp

@@ -569,7 +569,7 @@ nsXBLPrototypeBinding::GetRuleProcessor()
   return nullptr;
 }
 
-const ServoStyleSet*
+ServoStyleSet*
 nsXBLPrototypeBinding::GetServoStyleSet() const
 {
   return mResources ? mResources->GetServoStyleSet() : nullptr;

dom/xbl/nsXBLPrototypeBinding.h

@@ -131,7 +131,7 @@ public:
   void AppendStyleSheetsTo(nsTArray<mozilla::StyleSheet*>& aResult) const;
 
   nsIStyleRuleProcessor* GetRuleProcessor();
-  const mozilla::ServoStyleSet* GetServoStyleSet() const;
+  mozilla::ServoStyleSet* GetServoStyleSet() const;
 
   nsresult FlushSkinSheets();
 

dom/xbl/nsXBLPrototypeResources.h

@@ -64,7 +64,7 @@ public:
   // the Servo style backend.
   void ComputeServoStyleSet(nsPresContext* aPresContext);
 
-  const mozilla::ServoStyleSet* GetServoStyleSet() const { return mServoStyleSet.get(); }
+  mozilla::ServoStyleSet* GetServoStyleSet() const { return mServoStyleSet.get(); }
 
 private:
   // A loader object. Exists only long enough to load resources, and then it dies.