[SyncFS] Use variadic template in callback_tracker_internal.h

chrome/browser/sync_file_system/drive_backend/callback_tracker_internal.h

-// This file was GENERATED by command:
-//     pump.py callback_tracker_internal.h.pump
-// DO NOT EDIT BY HAND!!!
-
-
 // Copyright 2014 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_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
 
 #include "base/callback.h"
 #include "base/callback_internal.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 18 matching lines @@
  private:
   CallbackTracker* tracker_;  // Not owned.
   base::WeakPtrFactory<AbortHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AbortHelper);
 };
 
 template <typename>
 struct InvokeAndInvalidateHelper;
 
-template <>
-struct InvokeAndInvalidateHelper<void()> {
+template <typename... Args>
+struct InvokeAndInvalidateHelper<void(Args...)> {
   static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void()>& callback) {
+                  const base::Callback<void(Args...)>& callback,
+                  Args... args) {
     scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
     if (deleter) {
-      callback.Run();
+      callback.Run(base::internal::CallbackForward(args)...);
     }
   }
 };
-
-template <typename A1>
-struct InvokeAndInvalidateHelper<void(A1)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1)>& callback, A1 a1) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1));
-    }
-  }
-};
-
-template <typename A1, typename A2>
-struct InvokeAndInvalidateHelper<void(A1, A2)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2)>& callback, A1 a1, A2 a2) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2));
-    }
-  }
-};
-
-template <typename A1, typename A2, typename A3>
-struct InvokeAndInvalidateHelper<void(A1, A2, A3)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2, A3)>& callback, A1 a1,
-                      A2 a2, A3 a3) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2),
-          base::internal::CallbackForward(a3));
-    }
-  }
-};
-
-template <typename A1, typename A2, typename A3, typename A4>
-struct InvokeAndInvalidateHelper<void(A1, A2, A3, A4)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2, A3, A4)>& callback, A1 a1,
-                      A2 a2, A3 a3, A4 a4) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2),
-          base::internal::CallbackForward(a3),
-          base::internal::CallbackForward(a4));
-    }
-  }
-};
-
-template <typename A1, typename A2, typename A3, typename A4, typename A5>
-struct InvokeAndInvalidateHelper<void(A1, A2, A3, A4, A5)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2, A3, A4, A5)>& callback,
-                      A1 a1, A2 a2, A3 a3, A4 a4, A5 a5) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2),
-          base::internal::CallbackForward(a3),
-          base::internal::CallbackForward(a4),
-          base::internal::CallbackForward(a5));
-    }
-  }
-};
-
-template <typename A1, typename A2, typename A3, typename A4, typename A5,
-    typename A6>
-struct InvokeAndInvalidateHelper<void(A1, A2, A3, A4, A5, A6)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2, A3, A4, A5, A6)>& callback,
-                      A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2),
-          base::internal::CallbackForward(a3),
-          base::internal::CallbackForward(a4),
-          base::internal::CallbackForward(a5),
-          base::internal::CallbackForward(a6));
-    }
-  }
-};
-
-template <typename A1, typename A2, typename A3, typename A4, typename A5,
-    typename A6, typename A7>
-struct InvokeAndInvalidateHelper<void(A1, A2, A3, A4, A5, A6, A7)> {
-  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
-                  const base::Callback<void(A1, A2, A3, A4, A5, A6,
-                      A7)>& callback, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6,
-                      A7 a7) {
-    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
-    if (deleter) {
-      callback.Run(base::internal::CallbackForward(a1),
-          base::internal::CallbackForward(a2),
-          base::internal::CallbackForward(a3),
-          base::internal::CallbackForward(a4),
-          base::internal::CallbackForward(a5),
-          base::internal::CallbackForward(a6),
-          base::internal::CallbackForward(a7));
-    }
-  }
-};
 
 }  // namespace internal
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_