Replace DCHECK with DCHECK_op and split some DCHECKs wherever necessary

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

 // 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.
 
 #ifndef LayoutTableBoxComponent_h
 #define LayoutTableBoxComponent_h
 
 #include "core/CoreExport.h"
 #include "core/layout/LayoutBox.h"
 #include "core/paint/PaintResult.h"
@@ skipping 25 matching lines @@
   }
 
  protected:
   explicit LayoutTableBoxComponent(Element* element)
       : LayoutBox(element), m_lastPaintResult(FullyPainted) {}
 
   const LayoutObjectChildList* children() const { return &m_children; }
   LayoutObjectChildList* children() { return &m_children; }
 
   LayoutObject* firstChild() const {
-    DCHECK(children() == virtualChildren());
+    DCHECK_EQ(children(), virtualChildren());
     return children()->firstChild();
   }
   LayoutObject* lastChild() const {
-    DCHECK(children() == virtualChildren());
+    DCHECK_EQ(children(), virtualChildren());
     return children()->lastChild();
   }
 
  private:
   // If you have a LayoutTableBoxComponent, use firstChild or lastChild instead.
   void slowFirstChild() const = delete;
   void slowLastChild() const = delete;
 
   LayoutObjectChildList* virtualChildren() override { return children(); }
   const LayoutObjectChildList* virtualChildren() const override {
     return children();
   }
 
   LayoutObjectChildList m_children;
 
   friend class MutableForPainting;
   PaintResult m_lastPaintResult;
   CullRect m_lastPaintRect;
 };
 
 }  // namespace blink
 
 #endif  // LayoutTableBoxComponent_h