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diff --git a/ui/gfx/geometry/insets.h b/ui/gfx/geometry/insets.h
new file mode 100644
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+++ b/ui/gfx/geometry/insets.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_GEOMETRY_INSETS_H_
+#define UI_GFX_GEOMETRY_INSETS_H_
+
+#include <string>
+
+#include "ui/gfx/geometry/insets_f.h"
+#include "ui/gfx/gfx_export.h"
+
+namespace gfx {
+
+class Vector2d;
+
+// Represents the widths of the four borders or margins of an unspecified
+// rectangle. An Insets stores the thickness of the top, left, bottom and right
+// edges, without storing the actual size and position of the rectangle itself.
+//
+// This can be used to represent a space within a rectangle, by "shrinking" the
+// rectangle by the inset amount on all four sides. Alternatively, it can
+// represent a border that has a different thickness on each side.
+class GFX_EXPORT Insets {
+ public:
+  constexpr Insets() : top_(0), left_(0), bottom_(0), right_(0) {}
+  constexpr explicit Insets(int all)
+      : top_(all), left_(all), bottom_(all), right_(all) {}
+  constexpr Insets(int vertical, int horizontal)
+      : top_(vertical),
+        left_(horizontal),
+        bottom_(vertical),
+        right_(horizontal) {}
+  constexpr Insets(int top, int left, int bottom, int right)
+      : top_(top), left_(left), bottom_(bottom), right_(right) {}
+
+  constexpr int top() const { return top_; }
+  constexpr int left() const { return left_; }
+  constexpr int bottom() const { return bottom_; }
+  constexpr int right() const { return right_; }
+
+  // Returns the total width taken up by the insets, which is the sum of the
+  // left and right insets.
+  constexpr int width() const { return left_ + right_; }
+
+  // Returns the total height taken up by the insets, which is the sum of the
+  // top and bottom insets.
+  constexpr int height() const { return top_ + bottom_; }
+
+  // Returns true if the insets are empty.
+  bool IsEmpty() const { return width() == 0 && height() == 0; }
+
+  void Set(int top, int left, int bottom, int right) {
+    top_ = top;
+    left_ = left;
+    bottom_ = bottom;
+    right_ = right;
+  }
+
+  bool operator==(const Insets& insets) const {
+    return top_ == insets.top_ && left_ == insets.left_ &&
+           bottom_ == insets.bottom_ && right_ == insets.right_;
+  }
+
+  bool operator!=(const Insets& insets) const {
+    return !(*this == insets);
+  }
+
+  void operator+=(const Insets& insets) {
+    top_ += insets.top_;
+    left_ += insets.left_;
+    bottom_ += insets.bottom_;
+    right_ += insets.right_;
+  }
+
+  void operator-=(const Insets& insets) {
+    top_ -= insets.top_;
+    left_ -= insets.left_;
+    bottom_ -= insets.bottom_;
+    right_ -= insets.right_;
+  }
+
+  Insets operator-() const {
+    return Insets(-top_, -left_, -bottom_, -right_);
+  }
+
+  Insets Scale(float scale) const {
+    return Scale(scale, scale);
+  }
+
+  Insets Scale(float x_scale, float y_scale) const {
+    return Insets(static_cast<int>(top() * y_scale),
+                  static_cast<int>(left() * x_scale),
+                  static_cast<int>(bottom() * y_scale),
+                  static_cast<int>(right() * x_scale));
+  }
+
+  // Adjusts the vertical and horizontal dimensions by the values described in
+  // |vector|. Offsetting insets before applying to a rectangle would be
+  // equivalent to offseting the rectangle then applying the insets.
+  Insets Offset(const gfx::Vector2d& vector) const;
+
+  operator InsetsF() const {
+    return InsetsF(static_cast<float>(top()), static_cast<float>(left()),
+                   static_cast<float>(bottom()), static_cast<float>(right()));
+  }
+
+  // Returns a string representation of the insets.
+  std::string ToString() const;
+
+ private:
+  int top_;
+  int left_;
+  int bottom_;
+  int right_;
+};
+
+inline Insets operator+(Insets lhs, const Insets& rhs) {
+  lhs += rhs;
+  return lhs;
+}
+
+inline Insets operator-(Insets lhs, const Insets& rhs) {
+  lhs -= rhs;
+  return lhs;
+}
+
+}  // namespace gfx
+
+#endif  // UI_GFX_GEOMETRY_INSETS_H_