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-rw-r--r--chromium/win8/metro_driver/display_properties.h11
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diff --git a/chromium/win8/metro_driver/display_properties.h b/chromium/win8/metro_driver/display_properties.h
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+++ b/chromium/win8/metro_driver/display_properties.h
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+// Copyright 2013 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 CHROME_BROWSER_UI_METRO_DRIVER_DISPLAY_PROPERTIES_H_
+#define CHROME_BROWSER_UI_METRO_DRIVER_DISPLAY_PROPERTIES_H_
+
+// Determines the scale factor used in the modern/metro ui. 1.0 means unscaled.
+extern "C" __declspec(dllexport) float GetModernUIScale();
+
+#endif // CHROME_BROWSER_UI_METRO_DRIVER_DISPLAY_PROPERTIES_H_