Respect the system ClearType setting in RenderTextWin.

ui/gfx/font_smoothing_win.h

+// 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.
+
+#ifndef UI_GFX_FONT_SMOOTHING_WIN_H_
+#define UI_GFX_FONT_SMOOTHING_WIN_H_
+#pragma once
+
+namespace gfx {
+
+// Returns the Windows system font smoothing and ClearType settings.
+void GetCachedFontSmoothingSettings(bool* smoothing_enabled,
+                                    bool* cleartype_enabled);
+
+}  // namespace gfx
+
+#endif  // UI_GFX_FONT_SMOOTHING_WIN_H_