Make absolute and sort all Sky headers

sky/engine/core/events/AnimationPlayerEvent.h

 // Copyright 2014 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 AnimationPlayerEvent_h
 #define AnimationPlayerEvent_h
 
-#include "core/events/Event.h"
+#include "sky/engine/core/events/Event.h"
 
 namespace blink {
 
 struct AnimationPlayerEventInit : public EventInit {
     AnimationPlayerEventInit();
 
     double currentTime;
     double timelineTime;
 };
 
@@ skipping 25 matching lines @@
     AnimationPlayerEvent(const AtomicString& type, double currentTime, double timelineTime);
     AnimationPlayerEvent(const AtomicString&, const AnimationPlayerEventInit&);
 
     double m_currentTime;
     double m_timelineTime;
 };
 
 } // namespace blink
 
 #endif // AnimationPlayerEvent_h