Remove even more ATL dependencies.

app/os_exchange_data.h

 // Copyright (c) 2006-2008 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_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
-#include <atlbase.h>
 #include <objidl.h>
+#include "base/scoped_comptr_win.h"
 #endif
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 
 class GURL;
 class Pickle;
 
@@ skipping 124 matching lines @@
       if (owns_medium) {
         ReleaseStgMedium(medium);
         delete medium;
       }
     }
   };
 
   typedef std::vector<StoredDataInfo*> StoredData;
   StoredData contents_;
 
-  CComPtr<IDataObject> source_object_;
+  ScopedComPtr<IDataObject> source_object_;
 
   LONG ref_count_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(OSExchangeData);
 };
 
 #endif  // APP_OS_EXCHANGE_DATA_H_