Index: third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h |
diff --git a/third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h b/third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h |
deleted file mode 100644 |
index d7422c0e0b7822165c24831afdb450d9291c259b..0000000000000000000000000000000000000000 |
--- a/third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h |
+++ /dev/null |
@@ -1,72 +0,0 @@ |
-// Copyright 2016 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 TopDocumentRootScrollerController_h |
-#define TopDocumentRootScrollerController_h |
- |
-#include "core/CoreExport.h" |
-#include "core/page/scrolling/RootScrollerController.h" |
-#include "platform/heap/Handle.h" |
- |
-namespace blink { |
- |
-class Document; |
-class Element; |
-class GraphicsLayer; |
-class ScrollStateCallback; |
-class ViewportScrollCallback; |
- |
-// The RootScrollerController used to manage the root scroller for the top |
-// level Document on a page. In addition to the regular RootScroller duties |
-// such as keeping track of which Element is set as root scroller and which is |
-// the effective root scroller, this class is also responsible for setting the |
-// ViewportApplyScroll on the one Element on a page that should apply viewport |
-// scrolling actions. |
-class CORE_EXPORT TopDocumentRootScrollerController |
- : public RootScrollerController { |
-public: |
- static TopDocumentRootScrollerController* create(Document&); |
- |
- DECLARE_VIRTUAL_TRACE(); |
- |
- // This class needs to be informed of changes to compositing so that it can |
- // update the compositor when the effective root scroller changes. |
- void didUpdateCompositing() override; |
- |
- // This class needs to be informed when the document has been attached to a |
- // FrameView so that we can initialize the viewport scroll callback. |
- void didAttachDocument() override; |
- |
- // Returns true if the given ScrollStateCallback is the ViewportScrollCallback managed |
- // by this class. |
- // TODO(bokan): Temporarily needed to allow ScrollCustomization to |
- // differentiate between real custom callback and the built-in viewport |
- // apply scroll. crbug.com/623079. |
- bool isViewportScrollCallback( |
- const ScrollStateCallback*) const override; |
- |
-protected: |
- TopDocumentRootScrollerController(Document&); |
- |
- // Ensures the effective root scroller is currently valid and replaces it |
- // with the default if not. |
- void updateEffectiveRootScroller() override; |
- |
-private: |
- // Ensures that the element that should be used as the root scroller on the |
- // page has the m_viewportApplyScroll callback set on it. |
- void setViewportApplyScrollOnRootScroller(); |
- |
- // The apply-scroll callback that moves top controls and produces |
- // overscroll effects. This class makes sure this callback is set on the |
- // appropriate root scroller element. |
- Member<ViewportScrollCallback> m_viewportApplyScroll; |
- |
- // Tracks which element currently has the m_viewportApplyScroll set to it. |
- WeakMember<Element> m_currentViewportApplyScrollHost; |
-}; |
- |
-} // namespace blink |
- |
-#endif // RootScrollerController_h |