[cc] Rename all cc/ filenames to Chromium style

cc/CCDelayBasedTimeSource.h

-// Copyright 2011 The Chromium Authors. All rights reserved.
+// Copyright 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 CCDelayBasedTimeSource_h
-#define CCDelayBasedTimeSource_h
-
-#include "CCTimeSource.h"
-#include "CCTimer.h"
-#include <wtf/PassRefPtr.h>
-
-namespace cc {
-
-class CCThread;
-
-// This timer implements a time source that achieves the specified interval
-// in face of millisecond-precision delayed callbacks and random queueing delays.
-class CCDelayBasedTimeSource : public CCTimeSource, CCTimerClient {
-public:
-    static PassRefPtr<CCDelayBasedTimeSource> create(base::TimeDelta interval, CCThread*);
-
-    virtual ~CCDelayBasedTimeSource();
-
-    virtual void setClient(CCTimeSourceClient* client) OVERRIDE;
-
-    // CCTimeSource implementation
-    virtual void setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDelta interval) OVERRIDE;
-
-    virtual void setActive(bool) OVERRIDE;
-    virtual bool active() const OVERRIDE;
-
-    // Get the last and next tick times. nextTimeTime() returns null when
-    // inactive.
-    virtual base::TimeTicks lastTickTime() OVERRIDE;
-    virtual base::TimeTicks nextTickTime() OVERRIDE;
-
-    // CCTimerClient implementation.
-    virtual void onTimerFired() OVERRIDE;
-
-    // Virtual for testing.
-    virtual base::TimeTicks now() const;
-
-protected:
-    CCDelayBasedTimeSource(base::TimeDelta interval, CCThread*);
-    base::TimeTicks nextTickTarget(base::TimeTicks now);
-    void postNextTickTask(base::TimeTicks now);
-
-    enum State {
-        STATE_INACTIVE,
-        STATE_STARTING,
-        STATE_ACTIVE,
-    };
-
-    struct Parameters {
-        Parameters(base::TimeDelta interval, base::TimeTicks tickTarget)
-            : interval(interval), tickTarget(tickTarget)
-        { }
-        base::TimeDelta interval;
-        base::TimeTicks tickTarget;
-    };
-
-    CCTimeSourceClient* m_client;
-    bool m_hasTickTarget;
-    base::TimeTicks m_lastTickTime;
-
-    // m_currentParameters should only be written by postNextTickTask.
-    // m_nextParameters will take effect on the next call to postNextTickTask.
-    // Maintaining a pending set of parameters allows nextTickTime() to always
-    // reflect the actual time we expect onTimerFired to be called.
-    Parameters m_currentParameters;
-    Parameters m_nextParameters;
-
-    State m_state;
-    CCThread* m_thread;
-    CCTimer m_timer;
-};
-
-}
-#endif // CCDelayBasedTimeSource_h
+// Temporary forwarding header
+#include "cc/delay_based_time_source.h"