Move RareInheritedData (Quotes|Shadow)DataEquivalent to ComputedStyle.

third_party/WebKit/Source/core/style/ComputedStyle.h

Index: third_party/WebKit/Source/core/style/ComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.h b/third_party/WebKit/Source/core/style/ComputedStyle.h
index dc96497bafc041653082bc889f6ec7616c6e9056..76e5604a2f3b1265bed4ef04fd2c2682f9782ace 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -1700,6 +1700,8 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase<ComputedStyle>,
   QuotesData* Quotes() const { return rare_inherited_data_->quotes_.Get(); }
   void SetQuotes(PassRefPtr<QuotesData>);
 
+  bool QuotesDataEquivalent(const ComputedStyle&) const;
+
   // line-height-step
   static uint8_t InitialLineHeightStep() { return 0; }
   uint8_t LineHeightStep() const {
@@ -1792,6 +1794,8 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase<ComputedStyle>,
   }
   void SetTextShadow(PassRefPtr<ShadowList>);
 
+  bool TextShadowDataEquivalent(const ComputedStyle&) const;
+
   // text-size-adjust (aka -webkit-text-size-adjust)
   static TextSizeAdjust InitialTextSizeAdjust() {
     return TextSizeAdjust::AdjustAuto();