Use presentation attributes in HTMLMarquee

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

Index: third_party/WebKit/Source/core/html/HTMLMarqueeElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMarqueeElement.h b/third_party/WebKit/Source/core/html/HTMLMarqueeElement.h
index 325643a9bd4f4af8ffaf57e6ce7ad8a8f78f0c46..a423e736930f7e0d20f2bbd19746fdc69037247c 100644
--- a/third_party/WebKit/Source/core/html/HTMLMarqueeElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMarqueeElement.h
@@ -39,10 +39,6 @@ class HTMLMarqueeElement final : public HTMLElement {
 
   static HTMLMarqueeElement* create(Document&);
 
-  void attributeChanged(const QualifiedName&,
-                        const AtomicString& oldValue,
-                        const AtomicString& newValue,
-                        AttributeModificationReason) final;
   InsertionNotificationRequest insertedInto(ContainerNode*) final;
   void removedFrom(ContainerNode*) final;
 
@@ -64,6 +60,11 @@ class HTMLMarqueeElement final : public HTMLElement {
   explicit HTMLMarqueeElement(Document&);
   void didAddUserAgentShadowRoot(ShadowRoot&) override;
 
+  bool isPresentationAttribute(const QualifiedName&) const override;
+  void collectStyleForPresentationAttribute(const QualifiedName&,
+                                            const AtomicString&,
+                                            MutableStylePropertySet*) override;
+
   class RequestAnimationFrameCallback final : public FrameRequestCallback {
     WTF_MAKE_NONCOPYABLE(RequestAnimationFrameCallback);
 
@@ -116,9 +117,6 @@ class HTMLMarqueeElement final : public HTMLElement {
     double marqueeHeight;
   };
 
-  void attributeChangedCallback(const QualifiedName& attr,
-                                const String& newValue);
-
   StringKeyframeEffectModel* createEffectModel(AnimationParameters&);
 
   void continueAnimation();