blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/layout/line/LineBoxList.h

 /*
  * Copyright (C) 2009 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
@@ skipping 21 matching lines @@
 #include "core/layout/api/HitTestAction.h"
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 class CullRect;
 class HitTestLocation;
 class HitTestResult;
 class InlineFlowBox;
-class LayoutBoxModelObject;
 class LayoutPoint;
-class LayoutRect;
 class LayoutUnit;
 class LineLayoutBoxModel;
 class LineLayoutItem;
 struct PaintInfo;
 
 class LineBoxList {
   DISALLOW_NEW();
 
  public:
   LineBoxList() : m_firstLineBox(nullptr), m_lastLineBox(nullptr) {}
@@ skipping 48 matching lines @@
   InlineFlowBox* m_lastLineBox;
 };
 
 #if !ENABLE(ASSERT)
 inline void LineBoxList::checkConsistency() const {}
 #endif
 
 }  // namespace blink
 
 #endif  // LineBoxList_h