Move more dnd related files to ui/base

chrome/browser/download/drag_download_util.h

 // Copyright (c) 2010 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 CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_
 #pragma once
 
-#include "app/download_file_interface.h"
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
 #include "base/string16.h"
 #include "chrome/browser/download/drag_download_file.h"
+#include "ui/base/dragdrop/download_file_interface.h"
 
 class FilePath;
 class GURL;
 namespace net {
 class FileStream;
 }
 
 namespace drag_download_util {
 
 // Parse the download metadata set in DataTransfer.setData. The metadata
 // consists of a set of the following values separated by ":"
 // * MIME type
 // * File name
 // * URL
 // If the file name contains special characters, they need to be escaped
 // appropriately.
 // For example, we can have
 //   text/plain:example.txt:http://example.com/example.txt
 bool ParseDownloadMetadata(const string16& metadata,
                            string16* mime_type,
                            FilePath* file_name,
                            GURL* url);
 
 // Create a new file at the specified path. If the file already exists, try to
 // insert the sequential unifier to produce a new file, like foo-01.txt.
 // Return a FileStream if successful.
 net::FileStream* CreateFileStreamForDrop(FilePath* file_path);
 
 // Implementation of DownloadFileObserver to finalize the download process.
-class PromiseFileFinalizer : public DownloadFileObserver {
+class PromiseFileFinalizer : public ui::DownloadFileObserver {
  public:
   explicit PromiseFileFinalizer(DragDownloadFile* drag_file_downloader);
   virtual ~PromiseFileFinalizer();
 
   // DownloadFileObserver methods.
   virtual void OnDownloadCompleted(const FilePath& file_path);
   virtual void OnDownloadAborted();
 
  private:
   void Cleanup();
 
   scoped_refptr<DragDownloadFile> drag_file_downloader_;
 
   DISALLOW_COPY_AND_ASSIGN(PromiseFileFinalizer);
 };
 
 }  // namespace drag_download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_