google_apis: Implement DownloadFile in FakeDriveService

chrome/browser/google_apis/test_util.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 CHROME_BROWSER_GOOGLE_APIS_TEST_UTIL_H_
 #define CHROME_BROWSER_GOOGLE_APIS_TEST_UTIL_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 63 matching lines @@
     GDataErrorCode error_in,
     scoped_ptr<ResourceList> resource_list_in);
 
 // Copies the results from GetAccountMetadataCallback.
 void CopyResultsFromGetAccountMetadataCallback(
     GDataErrorCode* error_out,
     scoped_ptr<AccountMetadataFeed>* account_metadata_out,
     GDataErrorCode error_in,
     scoped_ptr<AccountMetadataFeed> account_metadata_in);
 
+// Copies the results from DownloadActionCallback.
+void CopyResultsFromDownloadActionCallback(
+    GDataErrorCode* error_out,
+    FilePath* temp_file_out,
+    GDataErrorCode error_in,
+    const FilePath& temp_file_in);
+
 // Returns a HttpResponse created from the given file path.
 scoped_ptr<test_server::HttpResponse> CreateHttpResponseFromFile(
     const FilePath& file_path);
 
 }  // namespace test_util
 }  // namespace google_apis
 
 #endif  // CHROME_BROWSER_GOOGLE_APIS_TEST_UTIL_H_