Fix security vulneratibly 31960359
am: dffa078205

Change-Id: Icea9297e2e5f7467ece053ae869208758f40b954
diff --git a/libs/gui/BufferQueueCore.cpp b/libs/gui/BufferQueueCore.cpp
index 9cb9c62..4f6ecff 100644
--- a/libs/gui/BufferQueueCore.cpp
+++ b/libs/gui/BufferQueueCore.cpp
@@ -89,6 +89,7 @@
     mSharedBufferSlot(INVALID_BUFFER_SLOT),
     mSharedBufferCache(Rect::INVALID_RECT, 0, NATIVE_WINDOW_SCALING_MODE_FREEZE,
             HAL_DATASPACE_UNKNOWN),
+    mLastQueuedSlot(INVALID_BUFFER_SLOT),
     mUniqueId(getUniqueId())
 {
     if (allocator == NULL) {