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diff --git a/chromium/mojo/examples/sample_app/spinning_cube.h b/chromium/mojo/examples/sample_app/spinning_cube.h
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+++ b/chromium/mojo/examples/sample_app/spinning_cube.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 MOJO_EXAMPLES_SAMPLE_APP_SPINNING_CUBE_H_
+#define MOJO_EXAMPLES_SAMPLE_APP_SPINNING_CUBE_H_
+
+#include <stdint.h>
+
+#include "base/memory/scoped_ptr.h"
+
+namespace mojo {
+namespace examples {
+
+class SpinningCube {
+ public:
+  SpinningCube();
+  ~SpinningCube();
+
+  void Init(uint32_t width, uint32_t height);
+  void set_direction(int direction) { direction_ = direction; }
+  void set_color(float r, float g, float b) {
+    color_[0] = r;
+    color_[1] = g;
+    color_[2] = b;
+  }
+  void SetFlingMultiplier(float drag_distance, float drag_time);
+  void UpdateForTimeDelta(float delta_time);
+  void UpdateForDragDistance(float distance);
+  void Draw();
+
+  void OnGLContextLost();
+
+ private:
+  class GLState;
+
+  void Update();
+
+  bool initialized_;
+  uint32_t width_;
+  uint32_t height_;
+  scoped_ptr<GLState> state_;
+  float fling_multiplier_;
+  int direction_;
+  float color_[3];
+};
+
+}  // namespace examples
+}  // namespace mojo
+
+#endif  // MOJO_EXAMPLES_SAMPLE_APP_SPINNING_CUBE_H_