No bug - Remove always-false argument from a binding function. r=me

MozReview-Commit-ID: EyRtQ92HjsV

layout/style/ServoBindingList.h

@@ -689,8 +689,7 @@ SERVO_BINDING_FUNC(Servo_ResolveStyleLazily, ServoStyleContextStrong,
                    mozilla::CSSPseudoElementType pseudo_type,
                    mozilla::StyleRuleInclusion rule_inclusion,
                    const mozilla::ServoElementSnapshotTable* snapshots,
-                   RawServoStyleSetBorrowed set,
-                   bool ignore_existing_styles)
+                   RawServoStyleSetBorrowed set)
 
 // Reparents style to the new parents.
 SERVO_BINDING_FUNC(Servo_ReparentStyle, ServoStyleContextStrong,

layout/style/ServoStyleSet.cpp

@@ -1399,8 +1399,7 @@ ServoStyleSet::ResolveStyleLazilyInternal(Element* aElement,
                              pseudoTypeForStyleResolution,
                              aRuleInclusion,
                              &Snapshots(),
-                             mRawSet.get(),
-                             /* aIgnoreExistingStyles = */ false).Consume();
+                             mRawSet.get()).Consume();
 
   if (GetPresContext()->EffectCompositor()->PreTraverse(aElement, aPseudoType)) {
     computedValues =
@@ -1408,8 +1407,7 @@ ServoStyleSet::ResolveStyleLazilyInternal(Element* aElement,
                                pseudoTypeForStyleResolution,
                                aRuleInclusion,
                                &Snapshots(),
-                               mRawSet.get(),
-                               /* aIgnoreExistingStyles = */ false).Consume();
+                               mRawSet.get()).Consume();
   }
 
   MOZ_DIAGNOSTIC_ASSERT(computedValues->PresContext() == GetPresContext() ||