Have VirtualDisplays send SF resize messages when resizing

Change-Id: I76d15b22099a659450ec875836c9bf2b6584838f
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 5ae3d0b..d5547b3 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -170,6 +170,7 @@
         Rect viewport;
         Rect frame;
         uint8_t orientation;
+        uint32_t width, height;
         String8 displayName;
         bool isSecure;
     };