Revert of Support for retreiving the monitor color space on X11.

ui/gfx/color_space_x11.cc

-// Copyright 2016 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.
-
-#include <stddef.h>
-
-extern "C" {
-#include <X11/Xatom.h>
-#include <X11/Xlib.h>
-}
-
-#include "ui/gfx/color_space.h"
-
-#include "ui/gfx/x/x11_types.h"
-
-namespace gfx {
-
-// static
-ColorSpace ColorSpace::FromBestMonitor() {
-  ColorSpace color_space;
-  Atom property = XInternAtom(GetXDisplay(), "_ICC_PROFILE", true);
-  if (property != None) {
-    Atom prop_type = None;
-    int prop_format = 0;
-    unsigned long nitems = 0;
-    unsigned long nbytes = 0;
-    char* property_data = NULL;
-    if (XGetWindowProperty(
-            GetXDisplay(), DefaultRootWindow(GetXDisplay()), property, 0,
-            0x1FFFFFFF /* MAXINT32 / 4 */, False, AnyPropertyType, &prop_type,
-            &prop_format, &nitems, &nbytes,
-            reinterpret_cast<unsigned char**>(&property_data)) == Success) {
-      color_space.icc_profile_.assign(property_data, property_data + nitems);
-      XFree(property_data);
-    }
-  }
-  return color_space;
-}
-
-}  // namespace gfx