chrome/browser/media_gallery/transient_device_ids.cc - Issue 12208079: Move TransientDeviceId from MediFileSystemRegistry to RemovableStorageNotifications.

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Side by Side Diff: chrome/browser/media_gallery/transient_device_ids.cc

Issue 12208079: Move TransientDeviceId from MediFileSystemRegistry to RemovableStorageNotifications. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Address comments Created 7 years, 10 months ago

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1 // Copyright (c) 2012 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 // TransientDeviceIds implementation.

6

7 #include "chrome/browser/media_gallery/transient_device_ids.h"

8

9 #include "base/logging.h"

10 #include "chrome/browser/system_monitor/media_storage_util.h"

11

12 namespace chrome {

13

14 TransientDeviceIds::TransientDeviceIds() : next_transient_id_(1) {}

15

16 TransientDeviceIds::~TransientDeviceIds() {}

17

18 uint64 TransientDeviceIds::GetTransientIdForDeviceId(

19 const std::string& device_id) {

20 DCHECK(thread_checker_.CalledOnValidThread());

21 DCHECK(MediaStorageUtil::IsRemovableDevice(device_id));

22

23 bool inserted =

24 id_map_.insert(std::make_pair(device_id, next_transient_id_)).second;

25 if (inserted) {

26 // Inserted a device that has never been seen before.

27 ++next_transient_id_;

28 }

29 return id_map_[device_id];

30 }

31

32 } // namespace chrome

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