Implementation of CSS3 nav-up/down/left/right properties from CSS3 UI.

Source/core/page/UseCounter.cpp

 /*
  * Copyright (C) 2012 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 471 matching lines @@
     case CSSPropertyWebkitFilter: return 413;
     case CSSPropertyWebkitBoxDecorationBreak: return 414;
     case CSSPropertyWebkitTapHighlightColor: return 415;
     case CSSPropertyBufferedRendering: return 416;
     case CSSPropertyGridAutoRows: return 417;
     case CSSPropertyGridAutoColumns: return 418;
     case CSSPropertyBackgroundBlendMode: return 419;
     case CSSPropertyMixBlendMode: return 420;
     case CSSPropertyTouchAction: return 421;
     case CSSPropertyGridArea: return 422;
+    case CSSPropertyNavDown: return 423;
+    case CSSPropertyNavLeft: return 424;
+    case CSSPropertyNavRight: return 425;
+    case CSSPropertyNavUp: return 426;
 
     // Add new features above this line (don't change the assigned numbers of the existing
     // items) and update maximumCSSSampleId() with the new maximum value.
 
     case CSSPropertyInvalid:
     case CSSPropertyVariable:
         ASSERT_NOT_REACHED();
         return 0;
     }
 
     ASSERT_NOT_REACHED();
     return 0;
 }
 
-static int maximumCSSSampleId() { return 422; }
+static int maximumCSSSampleId() { return 426; }
 
 UseCounter::UseCounter()
 {
     m_CSSFeatureBits.ensureSize(lastCSSProperty + 1);
     m_CSSFeatureBits.clearAll();
 }
 
 UseCounter::~UseCounter()
 {
     // We always log PageDestruction so that we have a scale for the rest of the features.
@@ skipping 154 matching lines @@
 UseCounter* UseCounter::getFrom(const StyleSheetContents* sheetContents)
 {
     // FIXME: We may want to handle stylesheets that have multiple owners
     //        http://crbug.com/242125
     if (sheetContents && !sheetContents->isUserStyleSheet() && sheetContents->hasSingleOwnerNode())
         return getFrom(sheetContents->singleOwnerDocument());
     return 0;
 }
 
 } // namespace WebCore