Start of display management for mus

ui/gfx/display_finder.h

Index: ui/gfx/display_finder.h
diff --git a/ui/gfx/display_finder.h b/ui/gfx/display_finder.h
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+// Copyright 2016 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_DISPLAY_FINDER_H_
+#define UI_GFX_DISPLAY_FINDER_H_
+
+#include <vector>
+
+#include "ui/gfx/gfx_export.h"
+
+namespace gfx {
+
+class Display;
+class Point;
+class Rect;
+
+// Returns the display in |displays| closest to |point|.
+GFX_EXPORT const Display* FindDisplayNearestPoint(
+    const std::vector<Display>& displays,
+    const Point& point);
+
+// Returns the display in |displays| with the biggest intersection of |rect|.
+// If none of the displays intersect |rect| null is returned.
+GFX_EXPORT const Display* FindDisplayWithBiggestIntersection(
+    const std::vector<Display>& displays,
+    const Rect& rect);
+
+}  // namespace gfx
+
+#endif  // UI_GFX_DISPLAY_FINDER_H_