Setting HTMLMediaElement.controller does not properly remove the 'mediagroup' content attribute

Source/bindings/v8/custom/V8HTMLMediaElementCustom.cpp

-/*
- * Copyright (C) 2011 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "V8HTMLMediaElement.h"
-
-#include "V8MediaController.h"
-
-namespace WebCore {
-
-void V8HTMLMediaElement::controllerAttributeSetterCustom(v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
-{
-    MediaController* controller = 0;
-    if (!value->IsNull()) {
-        if (!V8MediaController::HasInstance(value, info.GetIsolate(), worldType(info.GetIsolate()))) {
-            throwTypeError("Value is not of type MediaController", info.GetIsolate());
-            return;
-        }
-        controller = V8MediaController::toNative(value->ToObject());
-    }
-
-    // 4.8.10.11.2 Media controllers: controller attribute.
-    // On setting, it must first remove the element's mediagroup attribute, if any,
-    HTMLMediaElement* imp = V8HTMLMediaElement::toNative(info.Holder());
-    imp->setMediaGroup(String());
-    // and then set the current media controller to the given value.
-    imp->setController(controller);
-}
-
-}