Changed EBorderCollapse to an enum class and renamed its members

third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2097 matching lines @@
       CSSValueList* list = CSSValueList::createCommaSeparated();
       const FillLayer* currLayer = propertyID == CSSPropertyWebkitMaskPositionY
                                        ? &style.maskLayers()
                                        : &style.backgroundLayers();
       for (; currLayer; currLayer = currLayer->next())
         list->append(
             *zoomAdjustedPixelValueForLength(currLayer->yPosition(), style));
       return list;
     }
     case CSSPropertyBorderCollapse:
-      if (style.borderCollapse())
+      if (style.borderCollapse() == EBorderCollapse::Collapse)
         return CSSIdentifierValue::create(CSSValueCollapse);
       return CSSIdentifierValue::create(CSSValueSeparate);
     case CSSPropertyBorderSpacing: {
       CSSValueList* list = CSSValueList::createSpaceSeparated();
       list->append(
           *zoomAdjustedPixelValue(style.horizontalBorderSpacing(), style));
       list->append(
           *zoomAdjustedPixelValue(style.verticalBorderSpacing(), style));
       return list;
     }
@@ skipping 1491 matching lines @@
     case CSSPropertyAll:
       return nullptr;
     default:
       break;
   }
   ASSERT_NOT_REACHED();
   return nullptr;
 }
 
 }  // namespace blink