Move OSExchangeData from src/app to src/ui/base/dragdrop...

ui/base/dragdrop/os_exchange_data.h

Index: ui/base/dragdrop/os_exchange_data.h
===================================================================
--- ui/base/dragdrop/os_exchange_data.h	(revision 70938)
+++ ui/base/dragdrop/os_exchange_data.h	(working copy)
@@ -1,9 +1,9 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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 APP_OS_EXCHANGE_DATA_H_
-#define APP_OS_EXCHANGE_DATA_H_
+#ifndef UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_H_
+#define UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_H_
 #pragma once
 
 #include "build/build_config.h"
@@ -25,6 +25,8 @@
 class GURL;
 class Pickle;
 
+namespace ui {
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 // OSExchangeData
@@ -192,4 +194,6 @@
   DISALLOW_COPY_AND_ASSIGN(OSExchangeData);
 };
 
-#endif  // APP_OS_EXCHANGE_DATA_H_
+}  // namespace ui
+
+#endif  // UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_H_