Telemetry: Set scaling governor on all cpus (on all devices)

build/android/pylib/gtest/test_runner.py

 # Copyright (c) 2012 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 re
 
 from pylib import constants
 from pylib import pexpect
@@ skipping 174 matching lines @@
     if _TestSuiteRequiresMockTestServer(self.test_package.suite_name):
       self.LaunchChromeTestServerSpawner()
     if _TestSuiteRequiresHighPerfMode(self.test_package.suite_name):
       self._perf_controller.SetHighPerfMode()
     self.tool.SetupEnvironment()
 
   #override
   def TearDown(self):
     """Cleans up the test enviroment for the test suite."""
     if _TestSuiteRequiresHighPerfMode(self.test_package.suite_name):
-      self._perf_controller.RestoreOriginalPerfMode()
+      self._perf_controller.SetDefaultPerfMode()
     self.test_package.ClearApplicationState(self.device)
     self.tool.CleanUpEnvironment()
     super(TestRunner, self).TearDown()