[telemetry] Install PushAppsToBackground apk

telemetry/telemetry/page/shared_page_state.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 sys
 
 from telemetry.core import exceptions
 from telemetry.core import util
@@ skipping 84 matching lines @@
       wpr_mode = wpr_modes.WPR_REPLAY
 
     use_live_traffic = wpr_mode == wpr_modes.WPR_OFF
 
     if self.platform.network_controller.is_open:
       self.platform.network_controller.Close()
     self.platform.network_controller.InitializeIfNeeded(
         use_live_traffic=use_live_traffic)
     self.platform.network_controller.Open(wpr_mode,
                                           browser_options.extra_wpr_args)
+    self.platform.Initialize()
 
   @property
   def possible_browser(self):
     return self._possible_browser
 
   @property
   def browser(self):
     return self._browser
 
   def _FindBrowser(self, finder_options):
@@ skipping 239 matching lines @@
 class SharedDesktopPageState(SharedPageState):
   _device_type = 'desktop'
 
 
 class SharedTabletPageState(SharedPageState):
   _device_type = 'tablet'
 
 
 class Shared10InchTabletPageState(SharedPageState):
   _device_type = 'tablet_10_inch'