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diff --git a/chromium/ui/gfx/rect_conversions.h b/chromium/ui/gfx/rect_conversions.h
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+// 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_GFX_RECT_CONVERSIONS_H_
+#define UI_GFX_RECT_CONVERSIONS_H_
+
+#include "ui/gfx/rect.h"
+#include "ui/gfx/rect_f.h"
+
+namespace gfx {
+
+// Returns the smallest Rect that encloses the given RectF.
+UI_EXPORT Rect ToEnclosingRect(const RectF& rect);
+
+// Returns the largest Rect that is enclosed by the given RectF.
+UI_EXPORT Rect ToEnclosedRect(const RectF& rect);
+
+// Returns the Rect after snapping the corners of the RectF to an integer grid.
+// This should only be used when the RectF you provide is expected to be an
+// integer rect with floating point error. If it is an arbitrary RectF, then
+// you should use a different method.
+UI_EXPORT Rect ToNearestRect(const RectF& rect);
+
+// Returns true if the Rect produced after snapping the corners of the RectF
+// to an integer grid is withing |distance|.
+UI_EXPORT bool IsNearestRectWithinDistance(
+ const gfx::RectF& rect, float distance);
+
+// Returns a Rect obtained by flooring the values of the given RectF.
+// Please prefer the previous two functions in new code.
+UI_EXPORT Rect ToFlooredRectDeprecated(const RectF& rect);
+
+} // namespace gfx
+
+#endif // UI_GFX_RECT_CONVERSIONS_H_