Remove explicit bounds check from CSSValueList::item

Source/core/css/parser/CSSPropertyParser.cpp

Index: Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
index 0f64e8b04e4e68bc22e4b5e1229ac272f041f273..a79d659453e412be5a42bcfbf7ec61ea0d20f408 100644
--- a/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -3760,7 +3760,7 @@ bool CSSPropertyParser::parseGridTrackRepeatFunction(CSSValueList& list)
 
     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.
@@ -7327,7 +7327,7 @@ PassRefPtrWillBeRawPtr<CSSFilterValue> CSSPropertyParser::parseBuiltinFilterArgu
         if (!shadowValueList || shadowValueList->length() != 1)
             return nullptr;
 
-        filterValue->append((shadowValueList.release())->itemWithoutBoundsCheck(0));
+        filterValue->append((shadowValueList.release())->item(0));
         break;
     }
     default: