Support display: contents for elements, first-line and first-letter pseudos.

third_party/WebKit/Source/core/html/HTMLOptionElement.h

Index: third_party/WebKit/Source/core/html/HTMLOptionElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLOptionElement.h b/third_party/WebKit/Source/core/html/HTMLOptionElement.h
index c3143ce33e29aa8842f4bf1af9110134edac7cfc..fcd5fc8ad080867de6fe6d86612d646a13a5a7df 100644
--- a/third_party/WebKit/Source/core/html/HTMLOptionElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLOptionElement.h
@@ -33,7 +33,6 @@ namespace blink {
 class ExceptionState;
 class HTMLDataListElement;
 class HTMLSelectElement;
-class ComputedStyle;
 
 class CORE_EXPORT HTMLOptionElement final : public HTMLElement {
   DEFINE_WRAPPERTYPEINFO();
@@ -109,10 +108,6 @@ class CORE_EXPORT HTMLOptionElement final : public HTMLElement {
   void childrenChanged(const ChildrenChange&) override;
   String innerText() override;
 
-  // <option> never has a layoutObject so we manually manage a cached style.
-  void updateNonComputedStyle();
-  ComputedStyle* nonLayoutObjectComputedStyle() const override;
-  PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
   void didAddUserAgentShadowRoot(ShadowRoot&) override;
 
   String collectOptionInnerText() const;
@@ -125,7 +120,6 @@ class CORE_EXPORT HTMLOptionElement final : public HTMLElement {
   // Represents 'dirtiness'.
   // https://html.spec.whatwg.org/multipage/forms.html#concept-option-dirtiness
   bool m_isDirty = false;
-  RefPtr<ComputedStyle> m_style;
 };
 
 }  // namespace blink