Revert "Revert 239784 "Make page_cycler.py fully measure memory for each...""

media.media_cns_cases was failing with the following error:
TypeError: AddResults() takes at least 3 arguments (3 given)

BUG=323494
R=shadi@chromium.org, shadi@google.com, tonyg@chromium.org

Review URL: https://codereview.chromium.org/105753006

git-svn-id: http://src.chromium.org/svn/trunk/src/build@241537 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/pylib/android_commands.py

@@ -25,8 +25,6 @@ import constants
 import screenshot
 import system_properties
 
-from utils import host_path_finder
-
 try:
   from pylib import pexpect
 except:
@@ -1501,20 +1499,6 @@ class AndroidCommands(object):
     logging.warning('Could not find disk IO stats.')
     return None
 
-  def PurgeUnpinnedAshmem(self):
-    """Purges the unpinned ashmem memory for the whole system.
-
-    This can be used to make memory measurements more stable in particular.
-    """
-    host_path = host_path_finder.GetMostRecentHostPath('purge_ashmem')
-    if not host_path:
-      raise Exception('Could not find the purge_ashmem binary.')
-    device_path = os.path.join(constants.TEST_EXECUTABLE_DIR, 'purge_ashmem')
-    self.PushIfNeeded(host_path, device_path)
-    if self.RunShellCommand(device_path, log_result=True):
-      return
-    raise Exception('Error while purging ashmem.')
-
   def GetMemoryUsageForPid(self, pid):
     """Returns the memory usage for given pid.