Merge "Add ability to post a message at the front of the queue"

import android.graphics.Rect;

import android.graphics.RectF;

import android.graphics.drawable.Drawable;

import android.os.Handler;

import android.os.Message;

import android.os.Trace;

import android.util.ArraySet;

import android.util.IntProperty;

        }

        return r.left + "," + r.top + "-" + r.right + "," + r.bottom;

    }

    /**

     * Posts a runnable on a handler at the front of the queue ignoring any sync barriers.

     */

    public static void postAtFrontOfQueueAsynchronously(Handler h, Runnable r) {

        Message msg = h.obtainMessage().setCallback(r);

        h.sendMessageAtFrontOfQueue(msg);

    }

}