Remove MTP support on Linux.

components/storage_monitor/media_transfer_protocol_device_observer_linux.h

-// 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 COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_
-#define COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_
-
-#include <map>
-#include <string>
-
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "components/storage_monitor/storage_monitor.h"
-#include "device/media_transfer_protocol/media_transfer_protocol_manager.h"
-
-namespace base {
-class FilePath;
-}
-
-namespace storage_monitor {
-
-// Gets the mtp device information given a |storage_name|. On success,
-// fills in |id|, |name|, |location|, |vendor_name|, and |product_name|.
-typedef void (*GetStorageInfoFunc)(
-    const std::string& storage_name,
-    device::MediaTransferProtocolManager* mtp_manager,
-    std::string* id,
-    base::string16* name,
-    std::string* location,
-    base::string16* vendor_name,
-    base::string16* product_name);
-
-// Helper class to send MTP storage attachment and detachment events to
-// StorageMonitor.
-class MediaTransferProtocolDeviceObserverLinux
-    : public device::MediaTransferProtocolManager::Observer {
- public:
-  MediaTransferProtocolDeviceObserverLinux(
-      StorageMonitor::Receiver* receiver,
-      device::MediaTransferProtocolManager* mtp_manager);
-  ~MediaTransferProtocolDeviceObserverLinux() override;
-
-  // Finds the storage that contains |path| and populates |storage_info|.
-  // Returns false if unable to find the storage.
-  bool GetStorageInfoForPath(const base::FilePath& path,
-                             StorageInfo* storage_info) const;
-
-  void EjectDevice(const std::string& device_id,
-                   base::Callback<void(StorageMonitor::EjectStatus)> callback);
-
- protected:
-  // Only used in unit tests.
-  MediaTransferProtocolDeviceObserverLinux(
-      StorageMonitor::Receiver* receiver,
-      device::MediaTransferProtocolManager* mtp_manager,
-      GetStorageInfoFunc get_storage_info_func);
-
-  // device::MediaTransferProtocolManager::Observer implementation.
-  // Exposed for unit tests.
-  void StorageChanged(bool is_attached,
-                      const std::string& storage_name) override;
-
- private:
-  // Mapping of storage location and mtp storage info object.
-  typedef std::map<std::string, StorageInfo> StorageLocationToInfoMap;
-
-  // Enumerate existing mtp storage devices.
-  void EnumerateStorages();
-
-  // Find the |storage_map_| key for the record with this |device_id|. Returns
-  // true on success, false on failure.
-  bool GetLocationForDeviceId(const std::string& device_id,
-                              std::string* location) const;
-
-  // Pointer to the MTP manager. Not owned. Client must ensure the MTP
-  // manager outlives this object.
-  device::MediaTransferProtocolManager* mtp_manager_;
-
-  // Map of all attached mtp devices.
-  StorageLocationToInfoMap storage_map_;
-
-  // Function handler to get storage information. This is useful to set a mock
-  // handler for unit testing.
-  GetStorageInfoFunc get_storage_info_func_;
-
-  // The notifications object to use to signal newly attached devices.
-  // Guaranteed to outlive this class.
-  StorageMonitor::Receiver* const notifications_;
-
-  DISALLOW_COPY_AND_ASSIGN(MediaTransferProtocolDeviceObserverLinux);
-};
-
-}  // namespace storage_monitor
-
-#endif  // COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_