Make cc a component

cc/time_source.h

 // 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 CCTimeSource_h
 #define CCTimeSource_h
 
 #include "base/memory/ref_counted.h"
 #include "base/time.h"
+#include "cc/cc_export.h"
 
 namespace cc {
 
 class Thread;
 
 class TimeSourceClient {
 public:
     virtual void onTimerTick() = 0;
 
 protected:
     virtual ~TimeSourceClient() { }
 };
 
 // An generic interface for getting a reliably-ticking timesource of
 // a specified rate.
 //
 // Be sure to call setActive(false) before releasing your reference to the
 // timer, or it will keep on ticking!
-class TimeSource : public base::RefCounted<TimeSource> {
+class CC_EXPORT TimeSource : public base::RefCounted<TimeSource> {
 public:
     virtual void setClient(TimeSourceClient*) = 0;
     virtual void setActive(bool) = 0;
     virtual bool active() const = 0;
     virtual void setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDelta interval) = 0;
     virtual base::TimeTicks lastTickTime() = 0;
     virtual base::TimeTicks nextTickTime() = 0;
 
 protected:
     virtual ~TimeSource() { }
 
 private:
     friend class base::RefCounted<TimeSource>;
 };
 
 }
 #endif  // CCTimeSource_h