Add frame metadata parameter to camera data_callback.

bug:4460717
Change-Id: Ib47d7d7df20af8155a719f3dabefe030893bfebc
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index c5fefb8..af7f06e 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -140,7 +140,8 @@
 
         // these are static callback functions
         static void             notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2, void* user);
-        static void             dataCallback(int32_t msgType, const sp<IMemory>& dataPtr, void* user);
+        static void             dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
+                                             camera_frame_metadata_t *metadata, void* user);
         static void             dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr, void* user);
         // convert client from cookie
         static sp<Client>       getClientFromCookie(void* user);