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diff --git a/chromium/third_party/WebKit/Source/core/frame/DOMTimer.h b/chromium/third_party/WebKit/Source/core/frame/DOMTimer.h
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+++ b/chromium/third_party/WebKit/Source/core/frame/DOMTimer.h
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+/*
+ * Copyright (C) 2008 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 DOMTimer_h
+#define DOMTimer_h
+
+#include "bindings/v8/ScheduledAction.h"
+#include "core/frame/SuspendableTimer.h"
+#include "platform/UserGestureIndicator.h"
+#include "wtf/Compiler.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
+
+namespace WebCore {
+
+class ExecutionContext;
+
+class DOMTimer : public SuspendableTimer {
+public:
+    // Creates a new timer owned by the ExecutionContext, starts it and returns its ID.
+    static int install(ExecutionContext*, PassOwnPtr<ScheduledAction>, int timeout, bool singleShot);
+    static void removeByID(ExecutionContext*, int timeoutID);
+
+    virtual ~DOMTimer();
+
+    int timeoutID() const;
+
+    // ActiveDOMObject
+    virtual void contextDestroyed() OVERRIDE;
+    virtual void stop() OVERRIDE;
+
+    // The following are essentially constants. All intervals are in seconds.
+    static double hiddenPageAlignmentInterval();
+    static double visiblePageAlignmentInterval();
+
+private:
+    friend class ExecutionContext; // For create().
+
+    // Should only be used by ExecutionContext.
+    static PassOwnPtr<DOMTimer> create(ExecutionContext* context, PassOwnPtr<ScheduledAction> action, int timeout, bool singleShot, int timeoutID)
+    {
+        return adoptPtr(new DOMTimer(context, action, timeout, singleShot, timeoutID));
+    }
+
+    DOMTimer(ExecutionContext*, PassOwnPtr<ScheduledAction>, int interval, bool singleShot, int timeoutID);
+    virtual void fired();
+
+    // Retuns timer fire time rounded to the next multiple of timer alignment interval.
+    virtual double alignedFireTime(double) const;
+
+    int m_timeoutID;
+    int m_nestingLevel;
+    OwnPtr<ScheduledAction> m_action;
+    RefPtr<UserGestureToken> m_userGestureToken;
+};
+
+} // namespace WebCore
+
+#endif // DOMTimer_h