Replace DCHECK with DCHECK_op and split some DCHECKs wherever necessary

third_party/WebKit/Source/core/layout/LayoutState.cpp

 /*
  * Copyright (C) 2007 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
@@ skipping 95 matching lines @@
       m_flowThread(nullptr),
       m_next(root.view()->layoutState()),
       m_layoutObject(root) {
   DCHECK(!m_next);
   DCHECK(!root.isLayoutView());
   root.view()->pushLayoutState(*this);
 }
 
 LayoutState::~LayoutState() {
   if (m_layoutObject.view()->layoutState()) {
-    DCHECK(m_layoutObject.view()->layoutState() == this);
+    DCHECK_EQ(m_layoutObject.view()->layoutState(), this);
     m_layoutObject.view()->popLayoutState();
   }
 }
 
 LayoutUnit LayoutState::pageLogicalOffset(
     const LayoutBox& child,
     const LayoutUnit& childLogicalOffset) const {
   if (child.isHorizontalWritingMode())
     return m_paginationOffset.height() + childLogicalOffset;
   return m_paginationOffset.width() + childLogicalOffset;
 }
 
 }  // namespace blink