[Android][telemetry] Update pylib imports for modules that moved into devil.

build/android/pylib/perf/surface_stats_collector.py

 # Copyright 2013 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 Queue
 import datetime
 import logging
 import re
 import threading
-from pylib.device import device_utils
+
+from devil.android import device_utils
 
 
 # Log marker containing SurfaceTexture timestamps.
 _SURFACE_TEXTURE_TIMESTAMPS_MESSAGE = 'SurfaceTexture update timestamps'
 _SURFACE_TEXTURE_TIMESTAMP_RE = r'\d+'
 
 
 class SurfaceStatsCollector(object):
   """Collects surface stats for a SurfaceView from the output of SurfaceFlinger.
 
@@ skipping 157 matching lines @@
       fields = line.split()
       if len(fields) != 3:
         continue
       timestamp = long(fields[1])
       if timestamp == pending_fence_timestamp:
         continue
       timestamp /= nanoseconds_per_millisecond
       timestamps.append(timestamp)
 
     return (refresh_period, timestamps)