[Telemetry] Add MeasureMemory method to action_runner

telemetry/telemetry/core/platform.py

 # Copyright 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 as real_logging
 import os
 import sys
 
 from telemetry.core import discover
 from telemetry.core import local_server
 from telemetry.core import memory_cache_http_server
@@ skipping 153 matching lines @@
 
     This function does not require root or administrator access."""
     return self._platform_backend.FlushSystemCacheForDirectory(directory)
 
   def FlushDnsCache(self):
     """Flushes the OS's DNS cache completely.
 
     This function may require root or administrator access."""
     return self._platform_backend.FlushDnsCache()
 
+  def CanElevatePrivilege(self):
+    """Returns true if root or admin rights are available on the platform."""
+    return self._platform_backend.CanElevatePrivilege()
+
   def LaunchApplication(self,
                         application,
                         parameters=None,
                         elevate_privilege=False):
     """"Launches the given |application| with a list of |parameters| on the OS.
 
     Set |elevate_privilege| to launch the application with root or admin rights.
 
     Returns:
       A popen style process handle for host platforms.
@@ skipping 210 matching lines @@
   def StopAllLocalServers(self):
     self._local_server_controller.Close()
 
   @property
   def local_servers(self):
     """Returns the currently running local servers."""
     return self._local_server_controller.local_servers
 
   def HasBattOrConnected(self):
     return  self._platform_backend.HasBattOrConnected()