Remove CSS_REGIONS compile flag from Blink.

Source/core/css/InspectorCSSOMWrappers.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 52 matching lines @@
         switch (cssRule->type()) {
         case CSSRule::IMPORT_RULE:
             collect(static_cast<CSSImportRule*>(cssRule)->styleSheet());
             break;
         case CSSRule::MEDIA_RULE:
             collect(static_cast<CSSMediaRule*>(cssRule));
             break;
         case CSSRule::SUPPORTS_RULE:
             collect(static_cast<CSSSupportsRule*>(cssRule));
             break;
-#if ENABLE(CSS_REGIONS)
         case CSSRule::WEBKIT_REGION_RULE:
             collect(static_cast<WebKitCSSRegionRule*>(cssRule));
             break;
-#endif
         case CSSRule::HOST_RULE:
             collect(static_cast<CSSHostRule*>(cssRule));
             break;
         case CSSRule::STYLE_RULE:
             m_styleRuleToCSSOMWrapperMap.add(static_cast<CSSStyleRule*>(cssRule)->styleRule(), static_cast<CSSStyleRule*>(cssRule));
             break;
         default:
             break;
         }
     }
@@ skipping 39 matching lines @@
 }
 
 void InspectorCSSOMWrappers::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_styleRuleToCSSOMWrapperMap);
     info.addMember(m_styleSheetCSSOMWrapperSet);
 }
 
 } // namespace WebCore