libutils clean-up

Change-Id: I11ee943da23a66828455a9770fc3c5ceb4bbcaa9
diff --git a/libs/hwui/FontRenderer.h b/libs/hwui/FontRenderer.h
index 7e636e7..cbbd871 100644
--- a/libs/hwui/FontRenderer.h
+++ b/libs/hwui/FontRenderer.h
@@ -19,6 +19,7 @@
 
 #include <utils/LruCache.h>
 #include <utils/Vector.h>
+#include <utils/StrongPointer.h>
 
 #include <SkPaint.h>