Remove explicit bounds check from CSSValueList::item

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 3742 matching lines @@
         repeatedValues->append(trackSize);
 
         // This takes care of any trailing <ident>* in the grammar.
         currentValue = arguments->current();
         if (currentValue && currentValue->unit == CSSParserValue::ValueList)
             parseGridLineNames(*arguments, *repeatedValues);
     }
 
     for (size_t i = 0; i < repetitions; ++i) {
         for (size_t j = 0; j < repeatedValues->length(); ++j)
-            list.append(repeatedValues->itemWithoutBoundsCheck(j));
+            list.append(repeatedValues->item(j));
     }
 
     // parseGridTrackSize iterated over the repeat arguments, move to the next value.
     m_valueList->next();
     return true;
 }
 
 
 PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTrackSize(CSSParserValueList& inputList)
 {
@@ skipping 3546 matching lines @@
             filterValue->append(createPrimitiveNumericValue(argument));
         }
         break;
     }
     case CSSFilterValue::DropShadowFilterOperation: {
         // drop-shadow() takes a single shadow.
         RefPtrWillBeRawPtr<CSSValueList> shadowValueList = parseShadow(args, CSSPropertyWebkitFilter);
         if (!shadowValueList || shadowValueList->length() != 1)
             return nullptr;
 
-        filterValue->append((shadowValueList.release())->itemWithoutBoundsCheck(0));
+        filterValue->append((shadowValueList.release())->item(0));
         break;
     }
     default:
         ASSERT_NOT_REACHED();
     }
     return filterValue.release();
 }
 
 PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFilter()
 {
@@ skipping 1086 matching lines @@
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill));
     if (!seenStroke)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke));
     if (!seenMarkers)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers));
 
     return parsedValues.release();
 }
 
 } // namespace WebCore