[bindings] Remove usage of custom binding for namedPropertyQuery of 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 128 matching lines @@
         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);
     }
 }
 
+bool CSSStyleDeclaration::namedPropertyQuery(ScriptState* scriptState, const AtomicString& name, ExceptionState&)
+{
+    // NOTE: cssPropertyInfo lookups incur several mallocs.
+    // Successful lookups have the same cost the first time, but are cached.
+    if (cssPropertyInfo(name, scriptState->isolate()))
+        return true;
+    return false;
 }
+
+}