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

trunk/src/tools/telemetry/telemetry/core/browser.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 os
 
 from telemetry.core import browser_credentials
 from telemetry.core import exceptions
 from telemetry.core import extension_dict
 from telemetry.core import platform
@@ skipping 144 matching lines @@
         'WorkingSetSize': U,
         'WorkingSetSizePeak': V,
         'ProportionalSetSize': W,
         'PrivateDirty': X
       },
       'SystemCommitCharge': Y,
       'ProcessCount': Z,
     }
     Any of the above keys may be missing on a per-platform basis.
     """
-    self._platform_backend.PurgeUnpinnedMemory()
     result = self._GetStatsCommon(self._platform_backend.GetMemoryStats)
     result['SystemCommitCharge'] = \
         self._platform_backend.GetSystemCommitCharge()
     return result
 
   @property
   def cpu_stats(self):
     """Returns a dict of cpu statistics for the system.
     { 'Browser': {
         'CpuProcessTime': S,
@@ skipping 183 matching lines @@
 
   @property
   def supports_system_info(self):
     return self._browser_backend.supports_system_info
 
   def GetSystemInfo(self):
     """Returns low-level information about the system, if available.
 
        See the documentation of the SystemInfo class for more details."""
     return self._browser_backend.GetSystemInfo()