[Android] Move perf utilities into devil.

tools/profile_chrome/perf_controller.py

 # Copyright 2014 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 logging
 import os
 import signal
 import subprocess
 import sys
 import tempfile
 
+from devil.android import device_temp_file
+from devil.android.perf import perf_control
+
 from profile_chrome import controllers
 from profile_chrome import ui
 
 from pylib import constants
-from pylib.perf import perf_control
-from pylib.utils import device_temp_file
 
 sys.path.append(os.path.join(constants.DIR_SOURCE_ROOT,
                              'tools',
                              'telemetry'))
 try:
   # pylint: disable=F0401
   from telemetry.internal.platform.profiler import android_profiling_helper
   from telemetry.internal.util import binary_manager
 except ImportError:
   android_profiling_helper = None
@@ skipping 152 matching lines @@
         open(json_file_name, 'w') as json_file:
       cmd = [perfhost_path, 'script', '-s', perf_script_path, '-i',
              perf_profile, '--symfs', symfs_dir, '--kallsyms', kallsyms]
       if subprocess.call(cmd, stdout=json_file, stderr=dev_null):
         logging.warning('Perf data to JSON conversion failed. The result will '
                         'not contain any perf samples. You can still view the '
                         'perf data manually as shown above.')
         return None
 
     return json_file_name