Disallow redundant Bind calls.

chrome/browser/extensions/api/file_system/file_system_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/file_system/file_system_api.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 422 matching lines @@
   // Short circuit the user consent dialog for tests. This is far from a pretty
   // code design.
   if (g_auto_dialog_button_for_test != ui::DIALOG_BUTTON_NONE) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(callback, g_auto_dialog_button_for_test /* result */));
     return;
   }
 
   RequestFileSystemDialogView::ShowDialog(web_contents, extension, volume,
-                                          writable, base::Bind(callback));
+                                          writable, callback);
 }
 
 void ConsentProviderDelegate::ShowNotification(
     const Extension& extension,
     const base::WeakPtr<file_manager::Volume>& volume,
     bool writable) {
   RequestFileSystemNotification::ShowAutoGrantedNotification(
       profile_, extension, volume, writable);
 }
 
@@ skipping 982 matching lines @@
     return RespondNow(Error(kNotSupportedOnNonKioskSessionError));
   std::vector<api::file_system::Volume> result_volume_list;
   FillVolumeList(chrome_details_.GetProfile(), &result_volume_list);
 
   return RespondNow(ArgumentList(
       api::file_system::GetVolumeList::Results::Create(result_volume_list)));
 }
 #endif
 
 }  // namespace extensions