Replace DCHECK with DCHECK_op and split some DCHECKs wherever necessary

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/FragmentainerIterator.h"
 
 #include "core/layout/LayoutMultiColumnSet.h"
 
 namespace blink {
 
@@ skipping 131 matching lines @@
     // If the two fragmentainer intervals are disjoint, there's nothing of
     // interest in this fragmentainer group.
     if (firstFragmentainerInClipRect > m_endFragmentainerIndex ||
         lastFragmentainerInClipRect < m_currentFragmentainerIndex)
       return false;
     if (m_currentFragmentainerIndex < firstFragmentainerInClipRect)
       m_currentFragmentainerIndex = firstFragmentainerInClipRect;
     if (m_endFragmentainerIndex > lastFragmentainerInClipRect)
       m_endFragmentainerIndex = lastFragmentainerInClipRect;
   }
-  DCHECK(m_endFragmentainerIndex >= m_currentFragmentainerIndex);
+  DCHECK_GE(m_endFragmentainerIndex, m_currentFragmentainerIndex);
   return true;
 }
 
 }  // namespace blink