Move RenderNode to own file

Change-Id: I9380d161fd3ddd7b569c262dd8e7aa0c96151b1e
diff --git a/core/jni/android_view_GLES20Canvas.cpp b/core/jni/android_view_GLES20Canvas.cpp
index aa6a035..e72aff9 100644
--- a/core/jni/android_view_GLES20Canvas.cpp
+++ b/core/jni/android_view_GLES20Canvas.cpp
@@ -42,13 +42,13 @@
 #include <SkTemplates.h>
 #include <SkXfermode.h>
 
-#include <DisplayList.h>
 #include <DisplayListRenderer.h>
 #include <LayerRenderer.h>
 #include <OpenGLRenderer.h>
 #include <SkiaShader.h>
 #include <Stencil.h>
 #include <Rect.h>
+#include <RenderNode.h>
 
 #include <TextLayout.h>
 #include <TextLayoutCache.h>