customtabs: Add support for speculated_url in the benchmark scripts.

tools/android/loading/device_setup.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import collections
 import contextlib
 import logging
 import os
 import shutil
 import subprocess
@@ skipping 10 matching lines @@
 from devil.android import forwarder
 from devil.android.sdk import adb_wrapper
 from devil.android.sdk import intent
 from devil.android.sdk import keyevent
 
 sys.path.append(os.path.join(_SRC_DIR, 'build', 'android'))
 from pylib import constants
 from video_recorder import video_recorder
 
 sys.path.append(os.path.join(_SRC_DIR, 'tools', 'perf'))
-from chrome_telemetry_build import chromium_config
+from core import path_util
+sys.path.append(path_util.GetTelemetryDir())
 
-sys.path.append(chromium_config.GetTelemetryDir())
 from telemetry.internal.image_processing import video
 from telemetry.internal.util import wpr_server
 
 sys.path.append(os.path.join(
     _CATAPULT_DIR, 'telemetry', 'third_party', 'webpagereplay'))
 import adb_install_cert
 import certutils
 
 import common_util
 import devtools_monitor
@@ skipping 358 matching lines @@
     # speed index measurement.
     connection.ExecuteJavaScript("""
       (function() {
         requestAnimationFrame(function() {
           var screen = window.__speedindex_screen;
           screen.style.background = 'rgb(255, 255, 255)';
         });
       })();
     """)
     yield