ash: Get output info from chromeos instead of XRandR.

ash/display/display_util_x11.h

-// Copyright 2013 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 ASH_DISPLAY_DISPLAY_UTIL_X11_H_
-#define ASH_DISPLAY_DISPLAY_UTIL_X11_H_
-
-#include <vector>
-
-#include "ash/ash_export.h"
-#include "ash/display/display_info.h"
-
-struct _XRRScreenResources;
-typedef _XRRScreenResources XRRScreenResources;
-struct _XRROutputInfo;
-typedef _XRROutputInfo XRROutputInfo;
-
-namespace ash {
-namespace internal {
-struct Resolution;
-
-// Returns true if the size info in the output_info isn't valid
-// and should be ignored. This is exposed for testing.
-// |mm_width| and |mm_height| are given in millimeters.
-ASH_EXPORT bool ShouldIgnoreSize(unsigned long mm_width,
-                                 unsigned long mm_height);
-
-// Returns the resolution list.
-ASH_EXPORT std::vector<Resolution> GetResolutionList(
-    XRRScreenResources* screen_resources,
-    XRROutputInfo* output_info);
-
-}  // namespace internal
-}  // namespace ash
-
-#endif  // ASH_DISPLAY_DISPLAY_UTIL_X11_H_