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

Source/core/css/parser/CSSPropertyParser.cpp

Index: Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
index 7feb07b4a48960ea2a2e5239ebe093afee6063c7..46ca550c5dfe4a9bbe088042911795c926b29d61 100644
--- a/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -606,13 +606,13 @@ bool CSSPropertyParser::parseValue(CSSPropertyID propId, bool important)
             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;