InputDispatcher: Initialize mWindowInfosVsyncId

Bug: 402990967
Flag: EXEMPT bug fix
Test: Presubmit
Change-Id: Ib8f99c0285df211362a02e92063e3c78bf26b9fb
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 5491ab7..95e1c06 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -934,6 +934,7 @@
         mPendingEvent(nullptr),
         mLastDropReason(DropReason::NOT_DROPPED),
         mIdGenerator(IdGenerator::Source::INPUT_DISPATCHER),
+        mWindowInfosVsyncId(-1),
         mMinTimeBetweenUserActivityPokes(DEFAULT_USER_ACTIVITY_POKE_INTERVAL),
         mConnectionManager(mLooper),
         mTouchStates(mWindowInfos, mConnectionManager),