[Clean up] Remove code related to install test ca in Telemetry

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 10 matching lines @@
 from telemetry.internal.platform import linux_based_platform_backend
 from telemetry.internal.platform.power_monitor import android_dumpsys_power_monitor
 from telemetry.internal.platform.power_monitor import android_fuelgauge_power_monitor
 from telemetry.internal.platform.power_monitor import android_temperature_monitor
 from telemetry.internal.platform.power_monitor import (
     android_power_monitor_controller)
 from telemetry.internal.platform.power_monitor import sysfs_power_monitor
 from telemetry.internal.platform.profiler import android_prebuilt_profiler_helper
 from telemetry.internal.util import binary_manager
 from telemetry.internal.util import external_modules
-from telemetry.internal.util import webpagereplay_go_server
 
 psutil = external_modules.ImportOptionalModule('psutil')
 
 from devil.android import app_ui
 from devil.android import battery_utils
 from devil.android import device_errors
 from devil.android import device_utils
 from devil.android.perf import cache_control
 from devil.android.perf import perf_control
 from devil.android.perf import thermal_throttle
@@ skipping 52 matching lines @@
             android_temperature_monitor.AndroidTemperatureMonitor(self._device),
             android_dumpsys_power_monitor.DumpsysPowerMonitor(
                 self._battery, self),
             sysfs_power_monitor.SysfsPowerMonitor(self, standalone=True),
             android_fuelgauge_power_monitor.FuelGaugePowerMonitor(
                 self._battery),
         ], self._battery))
     self._video_recorder = None
     self._installed_applications = None
 
-    self._test_ca_installed = None
     self._system_ui = None
 
     _FixPossibleAdbInstability()
 
   @property
   def log_file_path(self):
     return None
 
   @classmethod
   def SupportsDevice(cls, device):
@@ skipping 437 matching lines @@
         break
 
   def IsAppRunning(self, process_name):
     """Determine if the given process is running.
 
     Args:
       process_name: The full package name string of the process.
     """
     return bool(self._device.GetPids(process_name))
 
-  @property
-  def supports_test_ca(self):
-    # TODO(nednguyen): figure out how to install certificate on Android M
-    # crbug.com/593152
-    # TODO(crbug.com/716084): enable support for test CA
-    # return self._device.build_version_sdk <= version_codes.LOLLIPOP_MR1
-    return False
-
-  def InstallTestCa(self):
-    """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._test_ca_installed is not None:
-      logging.warning('Test certificate authority is already installed.')
-      return
-    webpagereplay_go_server.ReplayServer.InstallRootCertificate(
-        android_device_id=self._device.adb.GetDeviceSerial(),
-        adb_path=self._device.adb.GetAdbPath())
-
-  def RemoveTestCa(self):
-    """Remove root CA from device installed by InstallTestCa.
-
-    Note: Any exceptions raised by this method will be logged but dismissed by
-    the network_controller_backend.
-    """
-    if self._test_ca_installed is not None:
-      try:
-        webpagereplay_go_server.ReplayServer.RemoveRootCertificate(
-            android_device_id=self._device.adb.GetDeviceSerial(),
-            adb_path=self._device.adb.GetAdbPath())
-      finally:
-        self._test_ca_installed = None
-
   def PushProfile(self, package, new_profile_dir):
     """Replace application profile with files found on host machine.
 
     Pushing the profile is slow, so we don't want to do it every time.
     Avoid this by pushing to a safe location using PushChangedFiles, and
     then copying into the correct location on each test run.
 
     Args:
       package: The full package name string of the application for which the
         profile is to be updated.
@@ skipping 247 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')