Fix bug 79905: Drag and drop of "DownloadURL" type ignores specified filename for data URLs.

chrome/browser/download/download_util.h

 // 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.
 //
 // Download utilities.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #pragma once
 
@@ skipping 46 matching lines @@
 
 // Create an extension based on the file name and mime type.
 void GenerateExtension(const FilePath& file_name,
                        const std::string& mime_type,
                        FilePath::StringType* generated_extension);
 
 // Create a file name based on the response from the server.
 void GenerateFileNameFromInfo(DownloadCreateInfo* info,
                               FilePath* generated_name);
 
-// Create a file name based on the response from the server.
+void GenerateFileNameFromSuggestedName(const GURL& url,
+                                       const std::string& suggested_name,
+                                       const std::string& mime_type,
+                                       FilePath* generated_name);
+
 void GenerateFileName(const GURL& url,
                       const std::string& content_disposition,
                       const std::string& referrer_charset,
                       const std::string& mime_type,
                       FilePath* generated_name);
 
 // Used to make sure we have a safe file extension and filename for a
 // download.  |file_name| can either be just the file name or it can be a
 // full path to a file.
 void GenerateSafeFileName(const std::string& mime_type, FilePath* file_name);
@@ skipping 189 matching lines @@
 
 // Returns true if this download should show the "dangerous file" warning.
 // Various factors are considered, such as the type of the file, whether a
 // user action initiated the download, and whether the user has explictly
 // marked the file type as "auto open".
 bool IsDangerous(DownloadCreateInfo* info, Profile* profile, bool auto_open);
 
 }  // namespace download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_