[wip] simplify -webkit-appearance adjust step

Source/core/css/resolver/StyleAdjuster.cpp

Index: Source/core/css/resolver/StyleAdjuster.cpp
diff --git a/Source/core/css/resolver/StyleAdjuster.cpp b/Source/core/css/resolver/StyleAdjuster.cpp
index 5d7c1aa7b235643035d2c71cb92d93279de623bd..fb67db78169efc6668856aec65be0a40b358e025 100644
--- a/Source/core/css/resolver/StyleAdjuster.cpp
+++ b/Source/core/css/resolver/StyleAdjuster.cpp
@@ -162,7 +162,7 @@ static bool hasWillChangeThatCreatesStackingContext(const RenderStyle* style)
     return false;
 }
 
-void StyleAdjuster::adjustRenderStyle(RenderStyle* style, RenderStyle* parentStyle, Element *e, const CachedUAStyle* cachedUAStyle)
+void StyleAdjuster::adjustRenderStyle(RenderStyle* style, RenderStyle* parentStyle, Element *e, bool uaStyleHasWebkitAppearance, bool valuesUnchangedForWebkitAppearance)
 {
     ASSERT(parentStyle);
 
@@ -226,7 +226,7 @@ void StyleAdjuster::adjustRenderStyle(RenderStyle* style, RenderStyle* parentSty
 
     // Let the theme also have a crack at adjusting the style.
     if (style->hasAppearance())
-        RenderTheme::theme().adjustStyle(style, e, cachedUAStyle);
+        RenderTheme::theme().adjustStyle(style, e, uaStyleHasWebkitAppearance, valuesUnchangedForWebkitAppearance);
 
     // If we have first-letter pseudo style, transitions, or animations, do not share this style.
     if (style->hasPseudoStyle(FIRST_LETTER) || style->transitions() || style->animations())