Profiler.AddFramesFromFile ("mylog.log");

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Example() {
        Profiler.AddFramesFromFile("mylog.log");
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Example():
        Profiler.AddFramesFromFile('mylog.log')