Add a missing include in fake_disk_mount_manager.cc.

chrome/browser/chromeos/file_manager/fake_disk_mount_manager.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/chromeos/file_manager/fake_disk_mount_manager.h"
 
-#include "base/callback.h"
-
 namespace file_manager {
 
 FakeDiskMountManager::MountRequest::MountRequest(
     const std::string& source_path,
     const std::string& source_format,
     const std::string& mount_label,
     chromeos::MountType type,
     chromeos::MountAccessMode access_mode)
     : source_path(source_path),
       source_format(source_format),
@@ skipping 29 matching lines @@
 
 const chromeos::disks::DiskMountManager::DiskMap&
 FakeDiskMountManager::disks() const {
   return disks_;
 }
 
 const chromeos::disks::DiskMountManager::Disk*
 FakeDiskMountManager::FindDiskBySourcePath(
     const std::string& source_path) const {
   DiskMap::const_iterator iter = disks_.find(source_path);
-  if (iter == disks_.end())
-    return nullptr;
-  return iter->second.get();
+  return iter != disks_.end() ? iter->second.get() : nullptr;
 }
 
 const chromeos::disks::DiskMountManager::MountPointMap&
 FakeDiskMountManager::mount_points() const {
   return mount_points_;
 }
 
 void FakeDiskMountManager::EnsureMountInfoRefreshed(
     const EnsureMountInfoRefreshedCallback& callback,
     bool force) {
@@ skipping 21 matching lines @@
 }
 
 void FakeDiskMountManager::UnmountPath(const std::string& mount_path,
                                        chromeos::UnmountOptions options,
                                        const UnmountPathCallback& callback) {
   unmount_requests_.push_back(UnmountRequest(mount_path, options));
 
   MountPointMap::iterator iter = mount_points_.find(mount_path);
   if (iter == mount_points_.end())
     return;
+
   const MountPointInfo mount_point = iter->second;
   mount_points_.erase(iter);
   FOR_EACH_OBSERVER(DiskMountManager::Observer, observers_,
                     OnMountEvent(DiskMountManager::UNMOUNTING,
                                  chromeos::MOUNT_ERROR_NONE,
                                  mount_point));
+
   // Enqueue callback so that |FakeDiskMountManager::FinishAllUnmountRequest()|
   // can call them.
   pending_unmount_callbacks_.push(callback);
 }
 
 bool FakeDiskMountManager::FinishAllUnmountPathRequests() {
   if (pending_unmount_callbacks_.empty())
     return false;
+
   while (!pending_unmount_callbacks_.empty()) {
     pending_unmount_callbacks_.front().Run(chromeos::MOUNT_ERROR_NONE);
     pending_unmount_callbacks_.pop();
   }
   return true;
 }
 
 void FakeDiskMountManager::FormatMountedDevice(const std::string& mount_path) {
 }
 
@@ skipping 14 matching lines @@
 
 void FakeDiskMountManager::InvokeDiskEventForTest(
     chromeos::disks::DiskMountManager::DiskEvent event,
     const chromeos::disks::DiskMountManager::Disk* disk) {
   FOR_EACH_OBSERVER(chromeos::disks::DiskMountManager::Observer,
                     observers_,
                     OnDiskEvent(event, disk));
 }
 
 }  // namespace file_manager