[StorageMonitor] Handle EjectDevice call for MTP devices

chrome/browser/storage_monitor/storage_monitor_linux.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.
 
 // StorageMonitorLinux implementation.
 
 #include "chrome/browser/storage_monitor/storage_monitor_linux.h"
 
 #include <mntent.h>
 #include <stdio.h>
@@ skipping 316 matching lines @@
 
 void StorageMonitorLinux::SetMediaTransferProtocolManagerForTest(
     device::MediaTransferProtocolManager* test_manager) {
   DCHECK(!media_transfer_protocol_manager_);
   media_transfer_protocol_manager_.reset(test_manager);
 }
 
 void StorageMonitorLinux::EjectDevice(
     const std::string& device_id,
     base::Callback<void(EjectStatus)> callback) {
+  StorageInfo::Type type;
+  if (!StorageInfo::CrackDeviceId(device_id, &type, NULL)) {
+    callback.Run(EJECT_FAILURE);
+    return;
+  }
+
+  if (type == StorageInfo::MTP_OR_PTP) {
+    media_transfer_protocol_device_observer_->EjectDevice(device_id, callback);
+    return;
+  }
+
   // Find the mount point for the given device ID.
   base::FilePath path;
   base::FilePath device;
   for (MountMap::iterator mount_info = mount_info_map_.begin();
        mount_info != mount_info_map_.end(); ++mount_info) {
     if (mount_info->second.storage_info.device_id() == device_id) {
       path = mount_info->first;
       device = mount_info->second.mount_device;
       mount_info_map_.erase(mount_info);
       break;
@@ skipping 156 matching lines @@
   mount_priority_map_[mount_device][mount_point] = removable;
   receiver()->ProcessAttach(*storage_info);
 }
 
 StorageMonitor* StorageMonitor::Create() {
   const base::FilePath kDefaultMtabPath("/etc/mtab");
   return new StorageMonitorLinux(kDefaultMtabPath);
 }
 
 }  // namespace chrome