Move some files in base to base/memory.

PRESUBMIT.py

 # Copyright (c) 2011 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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
@@ skipping 37 matching lines @@
         'See http://groups.google.com/a/chromium.org/group/chromium-dev/' +
         'browse_thread/thread/efb28c10435987fd',
         files) ]
   return []
 
 def _CheckSingletonInHeaders(input_api, output_api, source_file_filter):
   """Checks to make sure no header files have |Singleton<|."""
   pattern = input_api.re.compile(r'Singleton<')
   files = []
   for f in input_api.AffectedSourceFiles(source_file_filter):
+    if f.LocalPath().startswith('base/memory/singleton'):
+      continue
     if (f.LocalPath().endswith('.h') or f.LocalPath().endswith('.hxx') or
         f.LocalPath().endswith('.hpp') or f.LocalPath().endswith('.inl')):
       contents = input_api.ReadFile(f)
       if pattern.search(contents):
         files.append(f)
 
   if len(files):
     return [ output_api.PresubmitError(
         'Found Singleton<T> in the following header files.\n' +
         'Please move them to an appropriate source file so that the ' +
@@ skipping 155 matching lines @@
   results.extend(input_api.canned_checks.CheckChangeHasBugField(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasTestField(
       input_api, output_api))
   results.extend(_CheckSubversionConfig(input_api, output_api))
   return results
 
 
 def GetPreferredTrySlaves():
   return ['win', 'linux', 'mac']