Add a WebLockOrientationError independant from WebLockOrientationCallback.

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/v8/ScriptPromiseResolverWithContext.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 34 matching lines @@
         break;
     case ErrorTypeCanceled:
         code = AbortError;
         msg = "A call to lockOrientation() or unlockOrientation() canceled this call.";
         break;
     }
 
     m_resolver->reject(DOMException::create(code, msg));
 }
 
+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