Initial support for experimental touch-action CSS feature

Source/core/css/CSSParser.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 702 matching lines @@
             return true;
         break;
     case CSSPropertyTextRendering: // auto | optimizeSpeed | optimizeLegibility | geometricPrecision
         if (valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizelegibility || valueID == CSSValueGeometricprecision)
             return true;
         break;
     case CSSPropertyTextTransform: // capitalize | uppercase | lowercase | none | inherit
         if ((valueID >= CSSValueCapitalize && valueID <= CSSValueLowercase) || valueID == CSSValueNone)
             return true;
         break;
+    case CSSPropertyTouchAction: // auto | none
+        if (RuntimeEnabledFeatures::cssTouchActionEnabled() && (valueID == CSSValueAuto || valueID == CSSValueNone))
+            return true;
+        break;
     case CSSPropertyVisibility: // visible | hidden | collapse | inherit
         if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueCollapse)
             return true;
         break;
     case CSSPropertyWebkitAppearance:
         if ((valueID >= CSSValueCheckbox && valueID <= CSSValueTextarea) || valueID == CSSValueNone)
             return true;
         break;
     case CSSPropertyWebkitBackfaceVisibility:
         if (valueID == CSSValueVisible || valueID == CSSValueHidden)
@@ skipping 242 matching lines @@
     case CSSPropertyTableLayout:
     case CSSPropertyTextLineThroughMode:
     case CSSPropertyTextLineThroughStyle:
     case CSSPropertyTextOverflow:
     case CSSPropertyTextOverlineMode:
     case CSSPropertyTextOverlineStyle:
     case CSSPropertyTextRendering:
     case CSSPropertyTextTransform:
     case CSSPropertyTextUnderlineMode:
     case CSSPropertyTextUnderlineStyle:
+    case CSSPropertyTouchAction:
     case CSSPropertyVisibility:
     case CSSPropertyWebkitAppearance:
     case CSSPropertyWebkitBackfaceVisibility:
     case CSSPropertyWebkitBorderAfterStyle:
     case CSSPropertyWebkitBorderBeforeStyle:
     case CSSPropertyWebkitBorderEndStyle:
     case CSSPropertyWebkitBorderFit:
     case CSSPropertyWebkitBorderStartStyle:
     case CSSPropertyWebkitBoxAlign:
     case CSSPropertyWebkitBoxDecorationBreak:
@@ skipping 1779 matching lines @@
     case CSSPropertyTableLayout:
     case CSSPropertyTextLineThroughMode:
     case CSSPropertyTextLineThroughStyle:
     case CSSPropertyTextOverflow:
     case CSSPropertyTextOverlineMode:
     case CSSPropertyTextOverlineStyle:
     case CSSPropertyTextRendering:
     case CSSPropertyTextTransform:
     case CSSPropertyTextUnderlineMode:
     case CSSPropertyTextUnderlineStyle:
+    case CSSPropertyTouchAction:
     case CSSPropertyVariable:
     case CSSPropertyVisibility:
     case CSSPropertyWebkitAppearance:
     case CSSPropertyWebkitBackfaceVisibility:
     case CSSPropertyWebkitBorderAfterStyle:
     case CSSPropertyWebkitBorderBeforeStyle:
     case CSSPropertyWebkitBorderEndStyle:
     case CSSPropertyWebkitBorderFit:
     case CSSPropertyWebkitBorderStartStyle:
     case CSSPropertyWebkitBoxAlign:
@@ skipping 8943 matching lines @@
 {
     // The tokenizer checks for the construct of an+b.
     // However, since the {ident} rule precedes the {nth} rule, some of those
     // tokens are identified as string literal. Furthermore we need to accept
     // "odd" and "even" which does not match to an+b.
     return equalIgnoringCase(token, "odd") || equalIgnoringCase(token, "even")
         || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n");
 }
 
 }