[cc] Rename all cc/ filenames to Chromium style

cc/timer.h

-// Copyright 2012 The Chromium Authors. All rights reserved.
+// Copyright 2011 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 CCTimer_h
+#define CCTimer_h
+
+namespace cc {
+
+class CCThread;
+class CCTimerTask;
+
+class CCTimerClient {
+public:
+    virtual ~CCTimerClient() { }
+
+    virtual void onTimerFired() = 0;
+};
+
+class CCTimer {
+public:
+    CCTimer(CCThread*, CCTimerClient*);
+    ~CCTimer();
+
+    // If a previous task is pending, it will be replaced with the new one.
+    void startOneShot(double intervalSeconds);
+    void stop();
+
+    bool isActive() const { return m_task; }
+
+private:
+    friend class CCTimerTask;
+
+    CCTimerClient* m_client;
+    CCThread* m_thread;
+    CCTimerTask* m_task; // weak pointer
+};
+
+} // namespace cc
+
+#endif