Implement Element.scrollIntoView for scroll-behavior: smooth.

third_party/WebKit/Source/core/page/Page.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 48 matching lines @@
 class EventHandlerRegistry;
 class FocusController;
 class Frame;
 class OverscrollController;
 struct PageScaleConstraints;
 class PageScaleConstraintsSet;
 class PluginData;
 class PointerLockController;
 class ScopedPageSuspender;
 class ScrollingCoordinator;
+class SmoothScrollSequencer;
 class Settings;
 class ConsoleMessageStorage;
 class SpellCheckerClient;
 class TopDocumentRootScrollerController;
 class ValidationMessageClient;
 class VisualViewport;
 class WebLayerTreeView;
 
 typedef uint64_t LinkHash;
 
@@ skipping 91 matching lines @@
   PointerLockController& pointerLockController() const {
     return *m_pointerLockController;
   }
   ValidationMessageClient& validationMessageClient() const {
     return *m_validationMessageClient;
   }
   void setValidationMessageClient(ValidationMessageClient*);
 
   ScrollingCoordinator* scrollingCoordinator();
 
+  SmoothScrollSequencer* smoothScrollSequencer();
+
   ClientRectList* nonFastScrollableRects(const LocalFrame*);
 
   Settings& settings() const { return *m_settings; }
 
   UseCounter& useCounter() { return m_useCounter; }
   Deprecation& deprecation() { return m_deprecation; }
   HostsUsingFeatures& hostsUsingFeatures() { return m_hostsUsingFeatures; }
 
   PageScaleConstraintsSet& pageScaleConstraintsSet();
   const PageScaleConstraintsSet& pageScaleConstraintsSet() const;
@@ skipping 105 matching lines @@
   Member<PageAnimator> m_animator;
   const Member<AutoscrollController> m_autoscrollController;
   Member<ChromeClient> m_chromeClient;
   const Member<DragCaret> m_dragCaret;
   const Member<DragController> m_dragController;
   const Member<FocusController> m_focusController;
   const Member<ContextMenuController> m_contextMenuController;
   const std::unique_ptr<PageScaleConstraintsSet> m_pageScaleConstraintsSet;
   const Member<PointerLockController> m_pointerLockController;
   Member<ScrollingCoordinator> m_scrollingCoordinator;
+  Member<SmoothScrollSequencer> m_smoothScrollSequencer;
   const Member<BrowserControls> m_browserControls;
   const Member<ConsoleMessageStorage> m_consoleMessageStorage;
   const Member<EventHandlerRegistry> m_eventHandlerRegistry;
   const Member<TopDocumentRootScrollerController>
       m_globalRootScrollerController;
   const Member<VisualViewport> m_visualViewport;
   const Member<OverscrollController> m_overscrollController;
 
   // Typically, the main frame and Page should both be owned by the embedder,
   // which must call Page::willBeDestroyed() prior to destroying Page. This
@@ skipping 41 matching lines @@
 #endif
 
   int m_subframeCount;
 };
 
 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Page>;
 
 }  // namespace blink
 
 #endif  // Page_h