[StorageMonitor] Remove GetStorageSize.

chrome/browser/storage_monitor/volume_mount_watcher_win.h

Index: chrome/browser/storage_monitor/volume_mount_watcher_win.h
diff --git a/chrome/browser/storage_monitor/volume_mount_watcher_win.h b/chrome/browser/storage_monitor/volume_mount_watcher_win.h
index ce31c36cc0b9733f11501a064179ca139d15740b..1fab1f6d95142e6e9489caa485b0ad5dcf0b379e 100644
--- a/chrome/browser/storage_monitor/volume_mount_watcher_win.h
+++ b/chrome/browser/storage_monitor/volume_mount_watcher_win.h
@@ -47,10 +47,6 @@ class VolumeMountWatcherWin {
                      bool* removable,
                      uint64* total_size_in_bytes) const;
 
-  // Returns the partition size of the given mount location. Returns 0 if the
-  // location is unknown.
-  uint64 GetStorageSize(const base::FilePath::StringType& mount_point) const;
-
   // Processes DEV_BROADCAST_VOLUME messages and triggers a
   // notification if appropriate.
   void OnWindowMessage(UINT event_type, LPARAM data);