Support dragging a virtual file out of the browser.

chrome/browser/download/download_util.h

 // Copyright (c) 2009 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.
 //
 // Download utilities.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 
 #include <set>
@@ skipping 113 matching lines @@
 
 // Helper function for download views to use when acting as a drag source for a
 // DownloadItem. If |icon| is NULL, no image will be accompany the drag. |view|
 // is only required for Mac OS X, elsewhere it can be NULL.
 void DragDownload(const DownloadItem* download,
                   SkBitmap* icon,
                   gfx::NativeView view);
 
 // Executable file support -----------------------------------------------------
 
-// Copy all executable file extensions.
-void InitializeExeTypes(std::set<std::string>* exe_extensions);
+// Determine if the specified extension is an executable extension.
+bool IsExecutableExtension(const std::string& extension);
 
 }  // namespace download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_