chrome/browser/sync_file_system/drive_backend/callback_tracker_internal.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/sync_file_system/drive_backend/callback_tracker_internal.h"
   6
   7 #include "chrome/browser/sync_file_system/drive_backend/callback_tracker.h"
   8
   9 namespace sync_file_system {
  10 namespace drive_backend {
  11 namespace internal {
  12
  13 AbortHelper::AbortHelper(CallbackTracker* tracker)
  14     : tracker_(tracker), weak_ptr_factory_(this) {
  15 }
  16
  17 AbortHelper::~AbortHelper() {}
  18
  19 base::WeakPtr<AbortHelper> AbortHelper::AsWeakPtr() {
  20   return weak_ptr_factory_.GetWeakPtr();
  21 }
  22
  23 // static
  24 scoped_ptr<AbortHelper> AbortHelper::TakeOwnership(
  25     const base::WeakPtr<AbortHelper>& abort_helper) {
  26   if (!abort_helper)
  27     return nullptr;
  28   scoped_ptr<AbortHelper> result =
  29       abort_helper->tracker_->PassAbortHelper(abort_helper.get());
  30   abort_helper->weak_ptr_factory_.InvalidateWeakPtrs();
  31   return result.Pass();
  32 }
  33
  34 }  // namespace internal
  35 }  // namespace drive_backend
  36 }  // namespace sync_file_system