Correctly initialize animator asynchronousity

bug:17483792
Change-Id: Icb6b6e6318d4c79ee94228806cb60b275424b9c9
diff --git a/libs/hwui/Animator.cpp b/libs/hwui/Animator.cpp
index 4f3a573..8bf2107 100644
--- a/libs/hwui/Animator.cpp
+++ b/libs/hwui/Animator.cpp
@@ -41,7 +41,8 @@
         , mHasStartValue(false)
         , mStartTime(0)
         , mDuration(300)
-        , mStartDelay(0) {
+        , mStartDelay(0)
+        , mMayRunAsync(true) {
 }
 
 BaseRenderNodeAnimator::~BaseRenderNodeAnimator() {