Remove ASSERT_ARG().

third_party/WebKit/Source/platform/fonts/mac/FontPlatformDataMac.mm

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (c) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 134 matching lines @@
         paint->setHinting(SkPaint::kNo_Hinting);
 }
 
 FontPlatformData::FontPlatformData(NSFont *nsFont, float size, bool syntheticBold, bool syntheticItalic, FontOrientation orientation)
     : m_textSize(size)
     , m_syntheticBold(syntheticBold)
     , m_syntheticItalic(syntheticItalic)
     , m_orientation(orientation)
     , m_isHashTableDeletedValue(false)
 {
-    ASSERT_ARG(nsFont, nsFont);
+    DCHECK(nsFont);
     if (canLoadInProcess(nsFont)) {
         m_typeface = adoptRef(SkCreateTypefaceFromCTFont(toCTFontRef(nsFont)));
     } else {
         // In process loading fails for cases where third party font manager software
         // registers fonts in non system locations such as /Library/Fonts
         // and ~/Library Fonts, see crbug.com/72727 or crbug.com/108645.
         m_typeface = loadFromBrowserProcess(nsFont, size);
     }
 }
 
 bool FontPlatformData::defaultUseSubpixelPositioning()
 {
     return FontDescription::subpixelPositioning();
 }
 
 
 } // namespace blink