Add use counter for prefixed intrinsic size keywords

Source/core/css/parser/CSSPropertyParser.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 353 matching lines @@
         || id == CSSValueWebkitGradient
         || id == CSSValueWebkitCanvas
         || id == CSSValueWebkitCrossFade;
 }
 
 bool CSSPropertyParser::validWidthOrHeight(CSSParserValue* value, Units unitless)
 {
     int id = value->id;
     if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent) {
         if (m_context.useCounter()) {
             if (value->id == CSSValueIntrinsic)

[leviw_travelin_and_unemployed, 2015/08/12 21:05:01]

Should we switch this to a switch?

[cbiesinger, 2015/08/12 21:13:53]

Done.

                 m_context.useCounter()->count(UseCounter::LegacyCSSValueIntrinsic);
             else if (value->id == CSSValueMinIntrinsic)
                 m_context.useCounter()->count(UseCounter::LegacyCSSValueMinIntrinsic);
+            else if (value->id == CSSValueWebkitMinContent)
+                m_context.useCounter()->count(UseCounter::CSSValuePrefixedMinContent);
+            else if (value->id == CSSValueWebkitMaxContent)
+                m_context.useCounter()->count(UseCounter::CSSValuePrefixedMaxContent);
+            else if (value->id == CSSValueWebkitFillAvailable)
+                m_context.useCounter()->count(UseCounter::CSSValuePrefixedFillAvailable);
+            else if (value->id == CSSValueWebkitFitContent)
+                m_context.useCounter()->count(UseCounter::CSSValuePrefixedFitContent);
         }
         return true;
     }
     return validUnit(value, FLength | FPercent | FNonNeg | unitless);
 }
 
 inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseValidPrimitive(CSSValueID identifier, CSSParserValue* value)
 {
     if (identifier)
         return cssValuePool().createIdentifierValue(identifier);
@@ skipping 7755 matching lines @@
         }
     }
 
     if (!list->length())
         return nullptr;
 
     return list.release();
 }
 
 } // namespace blink