[StorageMonitor] Remove GetStorageSize.

chrome/browser/storage_monitor/storage_monitor_mac.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.
 
 #ifndef CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 #define CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 
 #include <DiskArbitration/DiskArbitration.h>
 #include <map>
 
@@ skipping 24 matching lines @@
   void Init();
 
   void UpdateDisk(const std::string& bsd_name,
                   const StorageInfo& info,
                   UpdateType update_type);
 
   virtual bool GetStorageInfoForPath(
       const base::FilePath& path,
       StorageInfo* device_info) const OVERRIDE;
 
-  // Returns the storage size of the device present at |location|. If the
-  // device information is unavailable, returns zero. |location| must be a
-  // top-level mount point.
-  virtual uint64 GetStorageSize(const std::string& location) const OVERRIDE;
-
   virtual void EjectDevice(
       const std::string& device_id,
       base::Callback<void(EjectStatus)> callback) OVERRIDE;
 
  private:
   static void DiskAppearedCallback(DADiskRef disk, void* context);
   static void DiskDisappearedCallback(DADiskRef disk, void* context);
   static void DiskDescriptionChangedCallback(DADiskRef disk,
                                              CFArrayRef keys,
                                              void *context);
 
   bool ShouldPostNotificationForDisk(const StorageInfo& info) const;
   bool FindDiskWithMountPoint(const base::FilePath& mount_point,
                               StorageInfo* info) const;
 
   base::mac::ScopedCFTypeRef<DASessionRef> session_;
   // Maps disk bsd names to disk info objects. This map tracks all mountable
   // devices on the system, though only notifications for removable devices are
   // posted.
   std::map<std::string, StorageInfo> disk_info_map_;
 
   scoped_ptr<chrome::ImageCaptureDeviceManager> image_capture_device_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(StorageMonitorMac);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_