Update Window API for CSSOM smooth scrolling to match the spec

Source/core/frame/DOMWindow.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DOMWindow_h
 #define DOMWindow_h
 
 #include "core/events/EventTarget.h"
 #include "core/frame/DOMWindowBase64.h"
 #include "platform/heap/Handle.h"
@@ skipping 14 matching lines @@
 class Element;
 class Frame;
 class History;
 class LocalDOMWindow;
 class Location;
 class MediaQueryList;
 class Navigator;
 class Performance;
 class RequestAnimationFrameCallback;
 class Screen;
-class ScrollOptions;
+class ScrollToOptions;
 class SerializedScriptValue;
 class Storage;
 class StyleMedia;
 
 typedef WillBeHeapVector<RefPtrWillBeMember<MessagePort>, 1> MessagePortArray;
 
 class DOMWindow : public RefCountedWillBeGarbageCollectedFinalized<DOMWindow>, public EventTargetWithInlineData, public DOMWindowBase64 {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_EVENT_TARGET(DOMWindow);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindow);
@@ skipping 90 matching lines @@
     virtual void print() = 0;
     virtual void stop() = 0;
 
     virtual void alert(const String& message = String()) = 0;
     virtual bool confirm(const String& message) = 0;
     virtual String prompt(const String& message, const String& defaultValue) = 0;
 
     virtual bool find(const String&, bool caseSensitive, bool backwards, bool wrap, bool wholeWord, bool searchInFrames, bool showDialog) const = 0;
 
     virtual void scrollBy(double x, double y, ScrollBehavior = ScrollBehaviorAuto) const = 0;
-    virtual void scrollBy(double x, double y, const ScrollOptions&, ExceptionState&) const = 0;
-    virtual void scrollTo(double x, double y, ScrollBehavior = ScrollBehaviorAuto) const = 0;
-    virtual void scrollTo(double x, double y, const ScrollOptions&, ExceptionState&) const = 0;
+    virtual void scrollBy(const ScrollToOptions&) const = 0;
+    virtual void scrollTo(double x, double y) const = 0;
+    virtual void scrollTo(const ScrollToOptions&) const = 0;
     void scroll(double x, double y) const { scrollTo(x, y); }
-    void scroll(double x, double y, const ScrollOptions& scrollOptions, ExceptionState& exceptionState) const { scrollTo(x, y, scrollOptions, exceptionState); }
+    void scroll(const ScrollToOptions& scrollToOptions) const { scrollTo(scrollToOptions); }
     virtual void moveBy(float x, float y) const = 0;
     virtual void moveTo(float x, float y) const = 0;
 
     virtual void resizeBy(float x, float y) const = 0;
     virtual void resizeTo(float width, float height) const = 0;
 
     virtual PassRefPtrWillBeRawPtr<MediaQueryList> matchMedia(const String&) = 0;
 
     // DOM Level 2 Style Interface
     virtual PassRefPtrWillBeRawPtr<CSSStyleDeclaration> getComputedStyle(Element*, const String& pseudoElt = String()) const = 0;
@@ skipping 33 matching lines @@
     DEFINE_ATTRIBUTE_EVENT_LISTENER(orientationchange);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(touchstart);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(touchmove);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(touchend);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(touchcancel);
 };
 
 } // namespace blink
 
 #endif // DOMWindow_h