cefclient: Support dynamic configuration of the device scale factor with off-screen rendering (issue #1674)

tests/cefclient/browser/geometry_util.h

@@ -0,0 +1,23 @@
+// Copyright (c) 2015 The Chromium Embedded Framework 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 CEF_TESTS_CEFCLIENT_BROWSER_GEOMETRY_UTIL_H_
+#define CEF_TESTS_CEFCLIENT_BROWSER_GEOMETRY_UTIL_H_
+#pragma once
+
+#include "include/internal/cef_types_wrappers.h"
+
+namespace client {
+
+// Convert |value| from logical coordinates to device coordinates.
+int LogicalToDevice(int value, float device_scale_factor);
+CefRect LogicalToDevice(const CefRect& value, float device_scale_factor);
+
+// Convert |value| from device coordinates to logical coordinates.
+int DeviceToLogical(int value, float device_scale_factor);
+void DeviceToLogical(CefMouseEvent& value, float device_scale_factor);
+
+}  // namespace client
+
+#endif  // CEF_TESTS_CEFCLIENT_BROWSER_GEOMETRY_UTIL_H_