[bindings] Remove custom namedPropertyEnumerator from CSSStyleDeclaration

Source/core/css/CSSStyleDeclaration.cpp

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/css/CSSStyleDeclaration.h"
 
 #include "bindings/core/v8/V8Binding.h"
 #include "core/css/CSSPropertyMetadata.h"
 #include "core/css/parser/CSSParser.h"
@@ skipping 107 matching lines @@
     CSSPropertyID unresolvedProperty = cssPropertyInfo(name, scriptState->isolate());
     if (!unresolvedProperty)
         return false;
 
     setPropertyInternal(unresolvedProperty, propertyValue, false, exceptionState);
     if (exceptionState.throwIfNeeded())
         return false;
     return true;
 }
 
+void CSSStyleDeclaration::namedPropertyEnumerator(Vector<String>& names, ExceptionState&)
+{
+    typedef Vector<String, numCSSProperties - 1> PreAllocatedPropertyVector;
+    DEFINE_STATIC_LOCAL(PreAllocatedPropertyVector, propertyNames, ());
+    static unsigned propertyNamesLength = 0;
+    if (propertyNames.isEmpty()) {
+        for (int id = firstCSSProperty; id <= lastCSSProperty; ++id) {
+            CSSPropertyID propertyId = static_cast<CSSPropertyID>(id);
+            if (CSSPropertyMetadata::isEnabledProperty(propertyId))
+                propertyNames.append(getJSPropertyName(propertyId));
+        }
+        std::sort(propertyNames.begin(), propertyNames.end(), codePointCompareLessThan);
+        propertyNamesLength = propertyNames.size();
+    }
+    for (unsigned i = 0; i < propertyNamesLength; ++i) {
+        String key = propertyNames.at(i);
+        ASSERT(!key.isNull());
+        names.append(key);
+    }
 }
+
+}