nodeAtPoint(): Perform the early-check EARLY.

third_party/WebKit/Source/core/layout/LayoutBlock.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * 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 222 matching lines @@
     LayoutUnit marginAfterForChild(const LayoutBoxModelObject& child) const { return child.marginAfter(style()); }
     LayoutUnit marginStartForChild(const LayoutBoxModelObject& child) const { return child.marginStart(style()); }
     LayoutUnit marginEndForChild(const LayoutBoxModelObject& child) const { return child.marginEnd(style()); }
     void setMarginStartForChild(LayoutBox& child, LayoutUnit value) const { child.setMarginStart(value, style()); }
     void setMarginEndForChild(LayoutBox& child, LayoutUnit value) const { child.setMarginEnd(value, style()); }
     void setMarginBeforeForChild(LayoutBox& child, LayoutUnit value) const { child.setMarginBefore(value, style()); }
     void setMarginAfterForChild(LayoutBox& child, LayoutUnit value) const { child.setMarginAfter(value, style()); }
     LayoutUnit collapsedMarginBeforeForChild(const LayoutBox& child) const;
     LayoutUnit collapsedMarginAfterForChild(const LayoutBox& child) const;
 
-    bool nodeAtPoint(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
-
     virtual void scrollbarsChanged(bool /*horizontalScrollbarChanged*/, bool /*verticalScrollbarChanged*/);
 
     LayoutUnit availableLogicalWidthForContent() const { return (logicalRightOffsetForContent() - logicalLeftOffsetForContent()).clampNegativeToZero(); }
     LayoutUnit logicalLeftOffsetForContent() const { return isHorizontalWritingMode() ? borderLeft() + paddingLeft() : borderTop() + paddingTop(); }
     LayoutUnit logicalRightOffsetForContent() const { return logicalLeftOffsetForContent() + availableLogicalWidth(); }
     LayoutUnit startOffsetForContent() const { return style()->isLeftToRightDirection() ? logicalLeftOffsetForContent() : logicalWidth() - logicalRightOffsetForContent(); }
     LayoutUnit endOffsetForContent() const { return !style()->isLeftToRightDirection() ? logicalLeftOffsetForContent() : logicalWidth() - logicalRightOffsetForContent(); }
 
     virtual LayoutUnit logicalLeftSelectionOffset(const LayoutBlock* rootBlock, LayoutUnit position) const;
     virtual LayoutUnit logicalRightSelectionOffset(const LayoutBlock* rootBlock, LayoutUnit position) const;
@@ skipping 62 matching lines @@
 
     int firstLineBoxBaseline() const override;
     int inlineBlockBaseline(LineDirectionMode) const override;
 
     // This function disables the 'overflow' check in inlineBlockBaseline.
     // For 'inline-block', CSS says that the baseline is the bottom margin edge
     // if 'overflow' is not visible. But some descendant classes want to ignore
     // this condition.
     virtual bool shouldIgnoreOverflowPropertyForInlineBlockBaseline() const { return false; }
 
+    bool hitTestOverflowControl(HitTestResult&, const HitTestLocation&, const LayoutPoint& adjustedLocation) override;
     bool hitTestChildren(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
     void updateHitTestResult(HitTestResult&, const LayoutPoint&) override;
 
     // Delay update scrollbar until finishDelayUpdateScrollInfo() will be
     // called. This function is used when a flexbox is laying out its
     // descendant. If multiple calls are made to startDelayUpdateScrollInfo(),
     // finishDelayUpdateScrollInfo() will do nothing until finishDelayUpdateScrollInfo()
     // is called the same number of times.
     // finishDelayUpdateScrollInfo returns true when it marked something for layout.
     // It will also return a map of saved scroll positions that the caller should restore
@@ skipping 168 matching lines @@
     // FIXME: This is temporary as we move code that accesses block flow
     // member variables out of LayoutBlock and into LayoutBlockFlow.
     friend class LayoutBlockFlow;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock());
 
 } // namespace blink
 
 #endif // LayoutBlock_h