WebKit: make #if DCHECK_IS_ON consistent in third_party/WebKit/Source/platform/

third_party/WebKit/Source/platform/graphics/paint/ScrollDisplayItem.h

 // Copyright 2014 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 ScrollDisplayItem_h
 #define ScrollDisplayItem_h
 
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "wtf/Allocator.h"
@@ skipping 36 matching lines @@
   EndScrollDisplayItem(const DisplayItemClient& client, Type type)
       : PairedEndDisplayItem(client, type, sizeof(*this)) {
     ASSERT(isEndScrollType(type));
   }
 
   void replay(GraphicsContext&) const override;
   void appendToWebDisplayItemList(const IntRect&,
                                   WebDisplayItemList*) const override;
 
  private:
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   bool isEndAndPairedWith(DisplayItem::Type otherType) const final {
     return DisplayItem::isScrollType(otherType);
   }
 #endif
 };
 
 }  // namespace blink
 
 #endif  // ScrollDisplayItem_h