Resolve screen.orientation.lock() promise with undefined.

Source/modules/screen_orientation/LockOrientationCallback.cpp

 // Copyright 2014 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 "modules/screen_orientation/LockOrientationCallback.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "modules/screen_orientation/ScreenOrientation.h"
 
 namespace WebCore {
 
 LockOrientationCallback::LockOrientationCallback(PassRefPtr<ScriptPromiseResolver> resolver)
     : m_resolver(resolver)
 {
 }
 
 LockOrientationCallback::~LockOrientationCallback()
 {
 }
 
-void LockOrientationCallback::onSuccess(unsigned angle, blink::WebScreenOrientationType type)
+void LockOrientationCallback::onSuccess()
 {
-    // FIXME: for the moment, we do nothing with the angle, we should use it and
-    // convert it to the appropriate type if the type == 'undefined' when the
-    // method will be implemented in ScreenOrientationController.
-    m_resolver->resolve(ScreenOrientation::orientationTypeToString(type));
+    m_resolver->resolve();
 }
 
 void LockOrientationCallback::onError(blink::WebLockOrientationError error)
 {
     ExceptionCode code = 0;
     String msg = "";
 
     switch (error) {
     case blink::WebLockOrientationErrorNotAvailable:
         code = NotSupportedError;
         msg = "lockOrientation() is not available on this device.";
         break;
     case blink::WebLockOrientationErrorFullScreenRequired:
         code = SecurityError;
         msg = "The page needs to be fullscreen in order to call lockOrientation().";
         break;
     case blink::WebLockOrientationErrorCanceled:
         code = AbortError;
         msg = "A call to lockOrientation() or unlockOrientation() canceled this call.";
         break;
     }
 
     m_resolver->reject(DOMException::create(code, msg));
 }
 
 } // namespace WebCore