@Override
  public void onDraw(final Canvas canvas) {
    super.onDraw(canvas);
    mInstrumentation.onDraw(canvas);
  }
{@link NetworkImageView} that notifies its instance of {@link Instrumentation} whenever an image
request lifecycle event happens.
samples/comparison/src/main/java/com/facebook/samples/comparison/instrumentation/InstrumentedNetworkImageView.java