Rearrange some headers

Bug: 117921091
Test: all tests should pass
Change-Id: I6ee108df6ec1de8deabfb5ec6b0e8b6e76a940b1
diff --git a/libs/hwui/RootRenderNode.h b/libs/hwui/RootRenderNode.h
index ea10921..5c830e0 100644
--- a/libs/hwui/RootRenderNode.h
+++ b/libs/hwui/RootRenderNode.h
@@ -16,13 +16,12 @@
 
 #pragma once
 
-#include <utils/Looper.h>
-
 #include <set>
 #include <vector>
 
 #include "AnimationContext.h"
 #include "Animator.h"
+#include <IContextFactory.h>
 #include "PropertyValuesAnimatorSet.h"
 #include "RenderNode.h"