No quirky colors for border-top/left/right/bottom shorthands.

Source/core/css/parser/CSSPropertyParser.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
@@ skipping 588 matching lines @@
             if (!inQuirksMode()) {
                 parsedValue = parseColor();
                 if (parsedValue)
                     m_valueList->next();
                 break;
             }
 
             bool acceptQuirkyColors = false;
             switch (propId) {
             case CSSPropertyBackgroundColor:
-                if (!inShorthand())
-                    acceptQuirkyColors = true;
-                break;
             case CSSPropertyBorderBottomColor:
             case CSSPropertyBorderLeftColor:
             case CSSPropertyBorderRightColor:
             case CSSPropertyBorderTopColor:
+                if (!inShorthand() || m_currentShorthand == CSSPropertyBorderColor)
+                    acceptQuirkyColors = true;
+                break;
             case CSSPropertyColor:
                 acceptQuirkyColors = true;
                 break;
             default:
                 break;
             }
             parsedValue = parseColor(0, acceptQuirkyColors);
             if (parsedValue)
                 m_valueList->next();
         }
@@ skipping 7835 matching lines @@
             return nullptr;
         a = args->next();
 
         argNumber++;
     }
 
     return transformValue.release();
 }
 
 } // namespace blink