message: CameraBridgeViewBase synchronizes on a final field
  Synchronizing against non-final fields is advised against.
diff: @@ -38,7 +38,7 @@ public abstract class CameraBridgeViewBase extends SurfaceView implements Surfac
  private Bitmap mCacheBitmap;
  private CvCameraViewListener2 mListener;
  private boolean mSurfaceExist;
  - private Object mSyncObject = new Object();
  + private final Object mSyncObject = new Object();
  protected int mFrameWidth;
  protected int mFrameHeight;
  