[StorageMonitor] Remove GetStorageSize.

chrome/browser/storage_monitor/storage_monitor_chromeos.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.
 
 // chromeos::StorageMonitorCros listens for mount point changes and notifies
 // listeners about the addition and deletion of media devices.
 
 #ifndef CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_
 #define CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_
 
@@ skipping 39 matching lines @@
   virtual void OnFormatEvent(disks::DiskMountManager::FormatEvent event,
                              FormatError error_code,
                              const std::string& device_path) OVERRIDE;
 
   // Finds the device that contains |path| and populates |device_info|.
   // Returns false if unable to find the device.
   virtual bool GetStorageInfoForPath(
       const base::FilePath& path,
       chrome::StorageInfo* device_info) const OVERRIDE;
 
-  // Returns the storage size of the device present at |location|. If the
-  // device information is unavailable, returns zero.
-  virtual uint64 GetStorageSize(const std::string& location) const OVERRIDE;
-
   virtual void EjectDevice(
       const std::string& device_id,
       base::Callback<void(EjectStatus)> callback) OVERRIDE;
 
  private:
   friend class base::RefCountedThreadSafe<StorageMonitorCros>;
 
   // Mapping of mount path to removable mass storage info.
   typedef std::map<std::string, chrome::StorageInfo> MountMap;
 
@@ skipping 22 matching lines @@
 
   scoped_ptr<chrome::MediaTransferProtocolDeviceObserverLinux>
       media_transfer_protocol_device_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(StorageMonitorCros);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_