Fold ScrollingCoordinatorChromium into ScrollingCoordinator and devirtualize

Source/WebCore/page/scrolling/ScrollingTreeScrollingNode.cpp

Index: Source/WebCore/page/scrolling/ScrollingTreeScrollingNode.cpp
diff --git a/Source/WebCore/page/scrolling/ScrollingTreeScrollingNode.cpp b/Source/WebCore/page/scrolling/ScrollingTreeScrollingNode.cpp
deleted file mode 100644
index b99534e166eea9078a2adc384bfa77cc38b454ef..0000000000000000000000000000000000000000
--- a/Source/WebCore/page/scrolling/ScrollingTreeScrollingNode.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2012 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "ScrollingTreeScrollingNode.h"
-
-#if ENABLE(THREADED_SCROLLING)
-
-#include "ScrollingStateTree.h"
-
-namespace WebCore {
-
-ScrollingTreeScrollingNode::ScrollingTreeScrollingNode(ScrollingTree* scrollingTree, ScrollingNodeID nodeID)
-    : ScrollingTreeNode(scrollingTree, nodeID)
-    , m_frameScaleFactor(1)
-    , m_shouldUpdateScrollLayerPositionOnMainThread(0)
-    , m_horizontalScrollElasticity(ScrollElasticityNone)
-    , m_verticalScrollElasticity(ScrollElasticityNone)
-    , m_hasEnabledHorizontalScrollbar(false)
-    , m_hasEnabledVerticalScrollbar(false)
-    , m_horizontalScrollbarMode(ScrollbarAuto)
-    , m_verticalScrollbarMode(ScrollbarAuto)
-    , m_headerHeight(0)
-    , m_footerHeight(0)
-{
-}
-
-ScrollingTreeScrollingNode::~ScrollingTreeScrollingNode()
-{
-}
-
-void ScrollingTreeScrollingNode::updateBeforeChildren(ScrollingStateNode* stateNode)
-{
-    ScrollingStateScrollingNode* state = toScrollingStateScrollingNode(stateNode);
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::ViewportRect))
-        m_viewportRect = state->viewportRect();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::TotalContentsSize))
-        m_totalContentsSize = state->totalContentsSize();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::FrameScaleFactor))
-        m_frameScaleFactor = state->frameScaleFactor();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::ShouldUpdateScrollLayerPositionOnMainThread))
-        m_shouldUpdateScrollLayerPositionOnMainThread = state->shouldUpdateScrollLayerPositionOnMainThread();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::HorizontalScrollElasticity))
-        m_horizontalScrollElasticity = state->horizontalScrollElasticity();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::VerticalScrollElasticity))
-        m_verticalScrollElasticity = state->verticalScrollElasticity();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::HasEnabledHorizontalScrollbar))
-        m_hasEnabledHorizontalScrollbar = state->hasEnabledHorizontalScrollbar();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::HasEnabledVerticalScrollbar))
-        m_hasEnabledVerticalScrollbar = state->hasEnabledVerticalScrollbar();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::HorizontalScrollbarMode))
-        m_horizontalScrollbarMode = state->horizontalScrollbarMode();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::VerticalScrollbarMode))
-        m_verticalScrollbarMode = state->verticalScrollbarMode();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::ScrollOrigin))
-        m_scrollOrigin = state->scrollOrigin();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::HeaderHeight))
-        m_headerHeight = state->headerHeight();
-
-    if (state->hasChangedProperty(ScrollingStateScrollingNode::FooterHeight))
-        m_footerHeight = state->footerHeight();
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(THREADED_SCROLLING)