Set toolbar padding to something appropriate for Metro icons.

ui/base/scale.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_BASE_SCALE_H_
+#define UI_BASE_SCALE_H_
+#pragma once
+
+#include "build/build_config.h"
+#include "ui/base/ui_export.h"
+
+namespace ui {
+
+enum DisplayScale {
+  DS_ASH,
+  DS_DESKTOP_100,
+#if defined(OS_WIN)

[sail, 2012/04/18 20:17:26]

Would it be better to leave out this #ifdef

[Jói, 2012/04/18 20:31:14]

Done.

+  DS_DESKTOP_200,
+  DS_METRO_100,
+  DS_METRO_140,
+  DS_METRO_180,
+#endif  // defined(OS_WIN)
+};
+
+// Returns the display scale in use.
+UI_EXPORT const DisplayScale GetDisplayScale();
+
+}  // namespace ui
+
+#endif  // UI_BASE_SCALE_H_