Use FilePaths in content::DropData to avoid redundant conversions.

ui/base/dragdrop/os_exchange_data.h

 // Copyright (c) 2012 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_H_
 #define UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_H_
 
 #include "build/build_config.h"
 
 #include <set>
@@ skipping 15 matching lines @@
 class GURL;
 class Pickle;
 
 namespace gfx {
 class ImageSkia;
 class Vector2d;
 }
 
 namespace ui {
 
+struct FileInfo;
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 // OSExchangeData
 //  An object that holds interchange data to be sent out to OS services like
 //  clipboard, drag and drop, etc. This object exposes an API that clients can
 //  use to specify raw data and its high level type. This object takes care of
 //  translating that into something the OS can understand.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
@@ skipping 29 matching lines @@
   // Encapsulates the info about a file to be downloaded.
   struct UI_BASE_EXPORT DownloadFileInfo {
     DownloadFileInfo(const base::FilePath& filename,
                      DownloadFileProvider* downloader);
     ~DownloadFileInfo();
 
     base::FilePath filename;
     scoped_refptr<DownloadFileProvider> downloader;
   };
 
-  // Encapsulates the info about a file.
-  struct UI_BASE_EXPORT FileInfo {
-    FileInfo(const base::FilePath& path, const base::FilePath& display_name);
-    ~FileInfo();
-
-    // The path of the file.
-    base::FilePath path;
-    // The display name of the file. This field is optional.
-    base::FilePath display_name;
-  };
-
   // Provider defines the platform specific part of OSExchangeData that
   // interacts with the native system.
   class UI_BASE_EXPORT Provider {
    public:
     Provider() {}
     virtual ~Provider() {}
 
     virtual Provider* Clone() const = 0;
 
     virtual void MarkOriginatedFromRenderer() = 0;
@@ skipping 136 matching lines @@
  private:
   // Provides the actual data.
   scoped_ptr<Provider> provider_;
 
   DISALLOW_COPY_AND_ASSIGN(OSExchangeData);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_H_