Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/ui/display/util/display_util.h b/ui/display/util/display_util.h
new file mode 100644
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+++ b/ui/display/util/display_util.h
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+// Copyright 2014 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_DISPLAY_UTIL_DISPLAY_UTIL_H_
+#define UI_DISPLAY_UTIL_DISPLAY_UTIL_H_
+
+#include "ui/display/util/display_util_export.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace ui {
+
+// Returns true if a given size is in the list of bogus sizes in mm that should
+// be ignored.
+DISPLAY_UTIL_EXPORT bool IsDisplaySizeBlackListed(
+ const gfx::Size& physical_size);
+
+// Returns the desired device scale factor for the display with the given
+// physical_size and resoultion.
+DISPLAY_UTIL_EXPORT float GetScaleFactor(
+ const gfx::Size& physical_size_in_mm,
+ const gfx::Size& screen_size_in_pixels);
+
+} // namespace ui
+
+#endif // UI_DISPLAY_UTIL_DISPLAY_UTIL_H_
