Add CSS parsing support for the scroll-blocks-on property (in place of touch-action-delay)

Source/core/css/CSSPrimitiveValueMappings.h

 /*
  * Copyright (C) 2007 Alexey Proskuryakov <ap@nypop.com>.
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 4447 matching lines @@
     case CSSValueIsolate:
         return IsolationIsolate;
     default:
         break;
     }
 
     ASSERT_NOT_REACHED();
     return IsolationAuto;
 }
 
-template<> inline CSSPrimitiveValue::CSSPrimitiveValue(TouchActionDelay t)
-    : CSSValue(PrimitiveClass)
-{
-    m_primitiveUnitType = CSS_VALUE_ID;
-    switch (t) {
-    case TouchActionDelayNone:
-        m_value.valueID = CSSValueNone;
-        break;
-    case TouchActionDelayScript:
-        m_value.valueID = CSSValueScript;
-        break;
-    }
-}
-
-template<> inline CSSPrimitiveValue::operator TouchActionDelay() const
+template<> inline CSSPrimitiveValue::operator ScrollBlocksOn() const
 {
     switch (m_value.valueID) {
     case CSSValueNone:
-        return TouchActionDelayNone;
-    case CSSValueScript:
-        return TouchActionDelayScript;
+        return ScrollBlocksOnNone;
+    case CSSValueStartTouch:
+        return ScrollBlocksOnStartTouch;
+    case CSSValueWheelEvent:
+        return ScrollBlocksOnWheelEvent;
+    case CSSValueScrollEvent:
+        return ScrollBlocksOnScrollEvent;
     default:
         break;
     }
 
     ASSERT_NOT_REACHED();
-    return TouchActionDelayNone;
+    return ScrollBlocksOnNone;
 }
 
 template<> inline CSSPrimitiveValue::CSSPrimitiveValue(CSSBoxType cssBox)
     : CSSValue(PrimitiveClass)
 {
     m_primitiveUnitType = CSS_VALUE_ID;
     switch (cssBox) {
     case MarginBox:
         m_value.valueID = CSSValueMarginBox;
         break;
@@ skipping 281 matching lines @@
     default:
         break;
     }
     ASSERT_NOT_REACHED();
     return ScrollBehaviorInstant;
 }
 
 }
 
 #endif