Add an orientation parameter for overlay, so we can do camera preview in portrait mode.
diff --git a/include/ui/ISurface.h b/include/ui/ISurface.h
index 2ca0026..b37a8ac 100644
--- a/include/ui/ISurface.h
+++ b/include/ui/ISurface.h
@@ -86,7 +86,7 @@
     virtual void unregisterBuffers() = 0;
     
     virtual sp<OverlayRef> createOverlay(
-            uint32_t w, uint32_t h, int32_t format) = 0;
+            uint32_t w, uint32_t h, int32_t format, int32_t orientation) = 0;
 };
 
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