Make buffer age work in Vulkan

Test: manual testing in skiavk mode

Change-Id: I5b9d8af7d9cecf2f022ef104ec33a5b7477e9e0c
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index c561c86..1b3bf96 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -20,6 +20,7 @@
 #include "AnimationContext.h"
 #include "Caches.h"
 #include "EglManager.h"
+#include "Frame.h"
 #include "LayerUpdateQueue.h"
 #include "Properties.h"
 #include "RenderThread.h"