Implement direction-specific touch-action values (blink side)

Source/core/css/ComputedStyleCSSValueMapping.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ skipping 697 matching lines @@
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     if (touchAction == TouchActionAuto)
         list->append(cssValuePool().createIdentifierValue(CSSValueAuto));
     if (touchAction & TouchActionNone) {
         ASSERT(touchAction == TouchActionNone);
         list->append(cssValuePool().createIdentifierValue(CSSValueNone));
     }
     if (touchAction == (TouchActionPanX | TouchActionPanY | TouchActionPinchZoom)) {
         list->append(cssValuePool().createIdentifierValue(CSSValueManipulation));
     } else {
-        if (touchAction & TouchActionPanX)
+        if ((touchAction & TouchActionPanX) == TouchActionPanX)
             list->append(cssValuePool().createIdentifierValue(CSSValuePanX));
-        if (touchAction & TouchActionPanY)
+        else if (touchAction & TouchActionPanLeft)
+            list->append(cssValuePool().createIdentifierValue(CSSValuePanLeft));
+        else if (touchAction & TouchActionPanRight)
+            list->append(cssValuePool().createIdentifierValue(CSSValuePanRight));
+
+        if ((touchAction & TouchActionPanY) == TouchActionPanY)
             list->append(cssValuePool().createIdentifierValue(CSSValuePanY));
+        else if (touchAction & TouchActionPanUp)
+            list->append(cssValuePool().createIdentifierValue(CSSValuePanUp));
+        else if (touchAction & TouchActionPanDown)
+            list->append(cssValuePool().createIdentifierValue(CSSValuePanDown));
     }
     ASSERT(list->length());
     return list.release();
 }
 
 static PassRefPtrWillBeRawPtr<CSSValue> valueForWillChange(const Vector<CSSPropertyID>& willChangeProperties, bool willChangeContents, bool willChangeScrollPosition)
 {
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
     if (willChangeContents)
         list->append(cssValuePool().createIdentifierValue(CSSValueContents));
@@ skipping 1811 matching lines @@
     case CSSPropertyAll:
         return nullptr;
     default:
         break;
     }
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
 }