clang fails compile on aura drag and drop code

ui/base/dragdrop/os_exchange_data_provider_aura.h

 // Copyright (c) 2011 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.
 
 #ifndef UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_
 #define UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_
 #pragma once
 
 #include <map>
 
 #include "ui/base/dragdrop/os_exchange_data.h"
 #include "googleurl/src/gurl.h"
 #include "base/pickle.h"
 #include "base/file_path.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 namespace ui {
 
 // OSExchangeData::Provider implementation for aura on linux.
 class UI_EXPORT OSExchangeDataProviderAura : public OSExchangeData::Provider {
  public:
   OSExchangeDataProviderAura();
-
-  virtual ~OSExchangeDataProviderAura() {}
+  virtual ~OSExchangeDataProviderAura();
 
   // Overridden from OSExchangeData::Provider:
   virtual void SetString(const string16& data) OVERRIDE;
   virtual void SetURL(const GURL& url, const string16& title) OVERRIDE;
   virtual void SetFilename(const FilePath& path) OVERRIDE;
   virtual void SetPickledData(OSExchangeData::CustomFormat format,
                               const Pickle& data) OVERRIDE;
   virtual bool GetString(string16* data) const OVERRIDE;
   virtual bool GetURLAndTitle(GURL* url, string16* title) const OVERRIDE;
   virtual bool GetFilename(FilePath* path) const OVERRIDE;
@@ skipping 46 matching lines @@
 
   // Drag image and offset data.
   SkBitmap drag_image_;
 
   DISALLOW_COPY_AND_ASSIGN(OSExchangeDataProviderAura);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_