Add FrameStats default constructor am: 9a8c42a72b am: 8cd7d257de am: 67105cc24d
am: b990d75315

Change-Id: Ibc0caec8dc613a6701791f1a633f3793522615af
diff --git a/include/ui/FrameStats.h b/include/ui/FrameStats.h
index 5fdf94d..6bfe635 100644
--- a/include/ui/FrameStats.h
+++ b/include/ui/FrameStats.h
@@ -25,6 +25,7 @@
 
 class FrameStats : public LightFlattenable<FrameStats> {
 public:
+    FrameStats() : refreshPeriodNano(0) {};
 
     /*
      * Approximate refresh time, in nanoseconds.