Revert 138212 - Implement High Contrast mode for Chrome OS.

ash/high_contrast/high_contrast_controller.cc

Index: ash/high_contrast/high_contrast_controller.cc
===================================================================
--- ash/high_contrast/high_contrast_controller.cc	(revision 138238)
+++ ash/high_contrast/high_contrast_controller.cc	(working copy)
@@ -1,24 +0,0 @@
-// 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.
-
-#include "ash/high_contrast/high_contrast_controller.h"
-
-#include "ash/shell.h"
-#include "ui/aura/root_window.h"
-#include "ui/compositor/layer.h"
-
-namespace ash {
-
-HighContrastController::HighContrastController()
-    : enabled_(false) {
-  root_window_ = ash::Shell::GetRootWindow();
-}
-
-void HighContrastController::SetEnabled(bool enabled) {
-  enabled_ = enabled;
-
-  root_window_->layer()->SetInverted(enabled_);
-}
-
-}  // namespace ash