Move hit testing of lines and floats to LayoutBlockFlow.

third_party/WebKit/Source/core/layout/LayoutBlockFlow.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) 2003-2013 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ skipping 309 matching lines @@
 
     virtual LayoutObject* layoutSpecialExcludedChild(bool /*relayoutChildren*/, SubtreeLayoutScope&);
     bool updateLogicalWidthAndColumnWidth() override;
 
     void setLogicalLeftForChild(LayoutBox& child, LayoutUnit logicalLeft);
     void setLogicalTopForChild(LayoutBox& child, LayoutUnit logicalTop);
     void determineLogicalLeftPositionForChild(LayoutBox& child);
 
     PaintInvalidationReason invalidatePaintIfNeeded(const PaintInvalidationState&) override;
 
+    bool hitTestChildren(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
+
 private:
     bool layoutBlockFlow(bool relayoutChildren, LayoutUnit& pageLogicalHeight, SubtreeLayoutScope&);
     void layoutBlockChildren(bool relayoutChildren, SubtreeLayoutScope&, LayoutUnit beforeEdge, LayoutUnit afterEdge);
 
     void markDescendantsWithFloatsForLayoutIfNeeded(LayoutBlockFlow& child, LayoutUnit newLogicalTop, LayoutUnit previousFloatLogicalBottom);
     bool positionAndLayoutOnceIfNeeded(LayoutBox& child, LayoutUnit newLogicalTop, BlockChildrenLayoutInfo&);
 
     // Handle breaking policy before the child, and insert a forced break in front of it if needed.
     // Returns true if a forced break was inserted.
     bool insertForcedBreakBeforeChildIfNeeded(LayoutBox& child, BlockChildrenLayoutInfo&);
@@ skipping 10 matching lines @@
     LayoutUnit getClearDelta(LayoutBox* child, LayoutUnit yPos);
 
     bool hasOverhangingFloats() { return parent() && containsFloats() && lowestFloatLogicalBottom() > logicalHeight(); }
     bool hasOverhangingFloat(LayoutBox*);
     void addIntrudingFloats(LayoutBlockFlow* prev, LayoutUnit xoffset, LayoutUnit yoffset);
     void addOverhangingFloats(LayoutBlockFlow* child, bool makeChildPaintOtherFloats);
     bool isOverhangingFloat(const FloatingObject& floatObject) const { return logicalBottomForFloat(floatObject) > logicalHeight(); }
 
     LayoutUnit lowestFloatLogicalBottom(FloatingObject::Type = FloatingObject::FloatLeftRight) const;
 
-    bool hitTestFloats(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) final;
+    bool hitTestFloats(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset);
 
     void invalidatePaintForOverhangingFloats(bool paintAllDescendants) final;
     void invalidatePaintForOverflow() final;
     void paintFloats(const PaintInfo&, const LayoutPoint&) const final;
     virtual void clipOutFloatingObjects(const LayoutBlock*, ClipScope&, const LayoutPoint&, const LayoutSize&) const;
     void clearFloats(EClear);
 
     LayoutUnit logicalRightFloatOffsetForLine(LayoutUnit logicalTop, LayoutUnit fixedOffset, LayoutUnit logicalHeight) const;
     LayoutUnit logicalLeftFloatOffsetForLine(LayoutUnit logicalTop, LayoutUnit fixedOffset, LayoutUnit logicalHeight) const;
 
@@ skipping 249 matching lines @@
 
 // END METHODS DEFINED IN LayoutBlockFlowLine
 
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlockFlow, isLayoutBlockFlow());
 
 } // namespace blink
 
 #endif // LayoutBlockFlow_h