Refactor Scroll Customization to share cc::ScrollStateData with blink.

third_party/WebKit/public/platform/WebScrollStateData.h

-// Copyright 2015 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 WebScrollStateData_h
-#define WebScrollStateData_h
-
-#include "WebCommon.h"
-
-#include <deque>
-
-namespace blink {
-
-// WebScrollState data contains the data used by blink::ScrollState. This is
-// used by the scroll customization API, detailed here (https://goo.gl/1ipTpP).
-// For the cc equivalent, see cc::ScrollStateData and cc::ScrollState.
-struct BLINK_EXPORT WebScrollStateData {
-    WebScrollStateData(double deltaX, double deltaY, double deltaGranularity,
-        double velocityX, double velocityY, bool inInertialPhase,
-        bool isBeginning = false, bool isEnding = false,
-        bool fromUserInput = false, bool shouldPropagate = true,
-        bool deltaConsumedForScrollSequence = false)
-        : deltaX(deltaX)
-        , deltaY(deltaY)
-        , deltaGranularity(deltaGranularity)
-        , velocityX(velocityX)
-        , velocityY(velocityY)
-        , inInertialPhase(inInertialPhase)
-        , isBeginning(isBeginning)
-        , isEnding(isEnding)
-        , fromUserInput(fromUserInput)
-        , shouldPropagate(shouldPropagate)
-        , currentNativeScrollingElement(0)
-        , deltaConsumedForScrollSequence(deltaConsumedForScrollSequence)
-        , causedScrollX(false)
-        , causedScrollY(false)
-    {
-    }
-
-    WebScrollStateData()
-        : WebScrollStateData(0, 0, 0, 0, 0, false)
-    {
-    }
-
-    double deltaX;
-    double deltaY;
-    double deltaGranularity;
-    double velocityX;
-    double velocityY;
-    bool inInertialPhase;
-    bool isBeginning;
-    bool isEnding;
-
-    bool fromUserInput;
-    bool shouldPropagate;
-    // The id of the last native element to respond to a scroll, or 0 if none exists.
-    int currentNativeScrollingElement;
-    // Whether the scroll sequence has had any delta consumed, in the
-    // current frame, or any child frames.
-    bool deltaConsumedForScrollSequence;
-
-    bool causedScrollX;
-    bool causedScrollY;
-};
-
-} // namespace blink
-
-#endif // WebScrollStateData_h