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diff --git a/chrome/views/repeat_controller.h b/chrome/views/repeat_controller.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_VIEWS_REPEAT_CONTROLLER_H__
+#define CHROME_VIEWS_REPEAT_CONTROLLER_H__
+
+#include "base/message_loop.h"
+#include "base/task.h"
+
+namespace ChromeViews {
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// RepeatController
+//
+//  An object that handles auto-repeating UI actions. There is a longer initial
+//  delay after which point repeats become constant. Users provide a callback
+//  that is notified when each repeat occurs so that they can perform the
+//  associated action.
+//
+///////////////////////////////////////////////////////////////////////////////
+class RepeatController : public Task {
+ public:
+  typedef Callback0::Type RepeatCallback;
+
+  // The RepeatController takes ownership of this callback object.
+  explicit RepeatController(RepeatCallback* callback);
+  virtual ~RepeatController();
+
+  // Start repeating.
+  void Start();
+
+  // Stop repeating.
+  void Stop();
+
+  // Task implementation:
+  void Run();
+
+ private:
+  RepeatController();
+
+  // Stop and delete the timer.
+  void DestroyTimer();
+
+  // The current timer.
+  Timer* timer_;
+
+  scoped_ptr<RepeatCallback> callback_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(RepeatController);
+};
+
+}
+
+#endif  // #ifndef CHROME_VIEWS_REPEAT_CONTROLLER_H__