Don't support mixed dashed/camel-cased CSS property names

Source/bindings/v8/custom/V8CSSStyleDeclarationCustom.cpp

 /*
  * Copyright (C) 2007-2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 113 matching lines @@
 
         if (hasCSSPropertyNamePrefix(propertyName, "css")) {
             hasSeenCssPrefix = true;
             i += 3;
         } else if (hasCSSPropertyNamePrefix(propertyName, "webkit")) {
             builder.append('-');
         } else if (isASCIIUpper(propertyName[0])) {
             return 0;
         }
 
+        bool hasSeenUpper = isASCIIUpper(propertyName[i]);
+
         builder.append(toASCIILower(propertyName[i++]));
 
         for (; i < length; ++i) {
             UChar c = propertyName[i];
             if (!isASCIIUpper(c)) {
                 if (c == '-')
                     hasSeenDash = true;
                 builder.append(c);
             }
             else {
+                hasSeenUpper = true;
                 builder.append('-');
                 builder.append(toASCIILower(c));
             }
         }
 
+        // Reject names containing both dashes and upper-case characters, such as "border-rightColor".
+        if (hasSeenDash && hasSeenUpper)
+            return 0;
+
         String propName = builder.toString();
         CSSPropertyID propertyID = cssPropertyID(propName);
         if (propertyID && RuntimeCSSEnabled::isCSSPropertyEnabled(propertyID)) {
             propInfo = new CSSPropertyInfo();
             propInfo->propID = propertyID;
             propInfo->nameWithDash = hasSeenDash;
             propInfo->nameWithCssPrefix = hasSeenCssPrefix;
             map.add(propertyName, propInfo);
         }
     }
@@ skipping 77 matching lines @@
     ExceptionState exceptionState(ExceptionState::SetterContext, getPropertyName(static_cast<CSSPropertyID>(propInfo->propID)), "CSSStyleDeclaration", info.Holder(), info.GetIsolate());
     imp->setPropertyInternal(static_cast<CSSPropertyID>(propInfo->propID), propertyValue, false, exceptionState);
 
     if (exceptionState.throwIfNeeded())
         return;
 
     v8SetReturnValue(info, value);
 }
 
 } // namespace WebCore