[SystemInfo API] Rewrite storage info provider using storage monitor impl

chrome/browser/storage_monitor/storage_monitor_win.cc

Index: chrome/browser/storage_monitor/storage_monitor_win.cc
diff --git a/chrome/browser/storage_monitor/storage_monitor_win.cc b/chrome/browser/storage_monitor/storage_monitor_win.cc
index 94a88bdf4110a72a95364bb63e8e4d144ab874eb..90935a516d55871636058bae0d4900b3ba0876e6 100644
--- a/chrome/browser/storage_monitor/storage_monitor_win.cc
+++ b/chrome/browser/storage_monitor/storage_monitor_win.cc
@@ -134,6 +134,13 @@ bool StorageMonitorWin::GetMTPStorageInfoFromDeviceId(
           storage_device_id, device_location, storage_object_id));
 }
 
+std::vector<StorageInfo> StorageMonitorWin::GetAllAvailableStorages() const {
+  std::vector<StorageInfo> results;
+  if (volume_mount_watcher_.get())
+    results = volume_mount_watcher_->GetAllVolumeStorages();
+  return results;
+}
+
 // static
 LRESULT CALLBACK StorageMonitorWin::WndProcThunk(HWND hwnd, UINT message,
                                                  WPARAM wparam, LPARAM lparam) {