Cut reference from MountedDiskMonitor to DiskMountManager.

chrome/browser/chromeos/file_manager/mounted_disk_monitor.h

Index: chrome/browser/chromeos/file_manager/mounted_disk_monitor.h
diff --git a/chrome/browser/chromeos/file_manager/mounted_disk_monitor.h b/chrome/browser/chromeos/file_manager/mounted_disk_monitor.h
index 403f7dfa977b156634f5b29ad64a797b95294543..ebaac2c36d631aded488c88228b7d2aa7c5e02b3 100644
--- a/chrome/browser/chromeos/file_manager/mounted_disk_monitor.h
+++ b/chrome/browser/chromeos/file_manager/mounted_disk_monitor.h
@@ -21,35 +21,28 @@ namespace file_manager {
 // couple of seconds. This is to give DiskManager time to process device
 // removed/added events (events for the devices that were present before suspend
 // should not trigger any new notifications or file manager windows).
-class MountedDiskMonitor
-    : public chromeos::PowerManagerClient::Observer,
-      public chromeos::disks::DiskMountManager::Observer {
+class MountedDiskMonitor : public chromeos::PowerManagerClient::Observer {
  public:
-  MountedDiskMonitor(
-      chromeos::PowerManagerClient* power_manager_client,
-      chromeos::disks::DiskMountManager* disk_mount_manager);
+  explicit MountedDiskMonitor(
+      chromeos::PowerManagerClient* power_manager_client);
   virtual ~MountedDiskMonitor();
 
   // PowerManagerClient::Observer overrides:
   virtual void SuspendImminent() OVERRIDE;
   virtual void SuspendDone(const base::TimeDelta& sleep_duration) OVERRIDE;
 
-  // DiskMountManager::Observer overrides.
-  virtual void OnDiskEvent(
+  // Receives forwarded notifications originates from DiskMountManager.
+  void OnDiskEvent(
       chromeos::disks::DiskMountManager::DiskEvent event,
-      const chromeos::disks::DiskMountManager::Disk* disk) OVERRIDE;
-  virtual void OnDeviceEvent(
+      const chromeos::disks::DiskMountManager::Disk* disk);
+  void OnDeviceEvent(
       chromeos::disks::DiskMountManager::DeviceEvent event,
-      const std::string& device_path) OVERRIDE;
-  virtual void OnMountEvent(
+      const std::string& device_path);
+  void OnMountEvent(
       chromeos::disks::DiskMountManager::MountEvent event,
       chromeos::MountError error_code,
-      const chromeos::disks::DiskMountManager::MountPointInfo& mount_info)
-      OVERRIDE;
-  virtual void OnFormatEvent(
-      chromeos::disks::DiskMountManager::FormatEvent event,
-      chromeos::FormatError error_code,
-      const std::string& device_path) OVERRIDE;
+      const chromeos::disks::DiskMountManager::MountPointInfo& mount_info,
+      const chromeos::disks::DiskMountManager::Disk* disk);
 
   // Checks if the disk is being remounted. The disk is remounting if it has
   // been unmounted during the resuming time span.
@@ -77,7 +70,6 @@ class MountedDiskMonitor
   void Reset();
 
   chromeos::PowerManagerClient* power_manager_client_;
-  chromeos::disks::DiskMountManager* disk_mount_manager_;
 
   bool is_resuming_;
   DiskMap mounted_disks_;