getItemInUseDuration() : No replacement in EntityLivingBase ?

Hi again,

First of all, here's the code I'm updating right now :

/**
 * Cancel the FOV decrease caused by the decreasing speed due to player penalties.
 * @param event
 */
@SubscribeEvent
public void onFOVUpdate(FOVUpdateEvent event) {
	EntityPlayer player = event.getEntity();
	PenaltyManager penalty = new PenaltyManager(player);//It's just a set of methods that give info about the player, not important
	float f = 1.0F;

	if (player.capabilities.isFlying) {
		f *= 1.1F;
	}

	IAttributeInstance iattributeinstance = player
			.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED);
	f = (float) ((double) f * (((iattributeinstance.getAttributeValue() / penalty
			.getHealthAndExhaustionModifier())
			/ (double) player.capabilities.getWalkSpeed() + 1.0D) / 2.0D));

	if (player.capabilities.getWalkSpeed() == 0.0F || Float.isNaN(f)
			|| Float.isInfinite(f)) {
		f = 1.0F;
	}

	if (player.isHandActive()
			&& player.getActiveItemStack().getItem() == Items.BOW) {
		int i = player.getItemInUseDuration();// FIXME Does not exist anymore ?
		float f1 = (float) i / 20.0F;

		if (f1 > 1.0F) {
			f1 = 1.0F;
		} else {
			f1 *= f1;
		}

		f *= 1.0F - f1 * 0.15F;
	}
	event.setNewfov(f);
}

Since 1.9 I believe, all EntityLivingBase can use items, so I naturally searched through it to find replacements for my methods. I found some, but not for getItemInUseDuration(). I used it to know for how long the bow is being used.

If anyone has a workaround or found a replacement, I would be very grateful.