Add zoom functions and sendCommand.

b2060030
diff --git a/camera/libcameraservice/CameraService.h b/camera/libcameraservice/CameraService.h
index 0a909cf..2e3597f 100644
--- a/camera/libcameraservice/CameraService.h
+++ b/camera/libcameraservice/CameraService.h
@@ -122,6 +122,9 @@
         // get preview/capture parameters - key/value pairs
         virtual String8         getParameters() const;
 
+        // send command to camera driver
+        virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
+
         // our client...
         const sp<ICameraClient>&    getCameraClient() const { return mCameraClient; }