WIP to install test CA

telemetry/telemetry/internal/platform/android_platform_backend.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 logging
 import os
 import posixpath
 import re
 import subprocess
 import tempfile
@@ skipping 543 matching lines @@
 
   def InstallTestCa(self, ca_cert_path):
     """Install a randomly generated root CA on the android device.
 
     This allows transparent HTTPS testing with WPR server without need
     to tweak application network stack.
 
     Note: If this method fails with any exception, then RemoveTestCa will be
     automatically called by the network_controller_backend.
     """
+
     if self._device_cert_util is not None:
       logging.warning('Test certificate authority is already installed.')
       return
     self._device_cert_util = adb_install_cert.AndroidCertInstaller(
         self._device.adb.GetDeviceSerial(), None, ca_cert_path,
         adb_path=self._device.adb.GetAdbPath())
     self._device_cert_util.install_cert(overwrite_cert=True)
 
   def RemoveTestCa(self):
     """Remove root CA from device installed by InstallTestCa.
@@ skipping 267 matching lines @@
   for process in psutil.process_iter():
     try:
       if psutil.version_info >= (2, 0):
         if 'adb' in process.name():
           process.cpu_affinity([0])
       else:
         if 'adb' in process.name:
           process.set_cpu_affinity([0])
     except (psutil.NoSuchProcess, psutil.AccessDenied):
       logging.warn('Failed to set adb process CPU affinity')