Clean up: Omit default constructor in RemoveableDeviceNotificationsLinux::MountPointInfo struct.

chrome/browser/system_monitor/removable_device_notifications_linux.h

 // 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.
 
 // RemovableDeviceNotificationsLinux listens for mount point changes, notifies
 // the SystemMonitor about the addition and deletion of media devices, and
 // answers queries about mounted devices.
 
 #ifndef CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_LINUX_H_
 #define CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_LINUX_H_
@@ skipping 60 matching lines @@
 
  private:
   friend class base::RefCountedThreadSafe<RemovableDeviceNotificationsLinux>;
   friend class base::DeleteHelper<RemovableDeviceNotificationsLinux>;
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::FILE>;
 
   // Structure to save mounted device information such as device path and unique
   // identifier.
   struct MountPointInfo {
-    MountPointInfo();
-
     FilePath mount_device;
     std::string device_id;
     string16 device_name;
   };
 
   // Mapping of mount points to MountPointInfo.
   typedef std::map<FilePath, MountPointInfo> MountMap;
 
   // (mount point, priority)
   // For devices that are mounted to multiple mount points, this helps us track
@@ skipping 41 matching lines @@
   // to notify about it's departure and notify about another one of it's mount
   // points.
   MountPriorityMap mount_priority_map_;
 
   DISALLOW_COPY_AND_ASSIGN(RemovableDeviceNotificationsLinux);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_LINUX_H_