Add an orientation parameter for overlay, so we can do camera preview in portrait mode.
diff --git a/libs/surfaceflinger/LayerBase.h b/libs/surfaceflinger/LayerBase.h
index ed07b3f..f73ea0c 100644
--- a/libs/surfaceflinger/LayerBase.h
+++ b/libs/surfaceflinger/LayerBase.h
@@ -351,7 +351,7 @@
         virtual void postBuffer(ssize_t offset);
         virtual void unregisterBuffers();
         virtual sp<OverlayRef> createOverlay(uint32_t w, uint32_t h,
-                int32_t format);
+                int32_t format, int32_t orientation);
 
     protected:
         friend class LayerBaseClient;