replace OVERRIDE and FINAL with override and final in cc/

cc/PRESUBMIT.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.
 
 """Top-level presubmit script for cc.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 295 matching lines @@
 
   if problems:
     return [output_api.PresubmitPromptOrNotify(
         'You added one or more references to the base::Time class and/or one\n'
         'of its member functions (or base::Clock/DefaultClock). In cc code,\n'
         'it is most certainly incorrect! Instead use base::TimeTicks.\n\n'
         '\n'.join(problems))]
   else:
     return []
 
+def CheckOverrideFinal(input_api, output_api,
+                       whitelist=CC_SOURCE_FILES, blacklist=None):
+  """Make sure new lines of code don't use the OVERRIDE or FINAL macros."""
+
+  # TODO(mostynb): remove this check once the macros are removed
+  # from base/compiler_specific.h.
+
+  errors = []
+
+  source_file_filter = lambda x: input_api.FilterSourceFile(
+    x, white_list=CC_SOURCE_FILES, black_list=None)
+
+  override_files = []
+  final_files = []
+
+  for f in input_api.AffectedSourceFiles(source_file_filter):
+    contents = input_api.ReadFile(f, 'rb')
+
+    # "override" and "final" should be used instead of OVERRIDE/FINAL now.
+    if re.search(r"\bOVERRIDE\b", contents):
+      override_files.append(f.LocalPath())
+
+    if re.search(r"\bFINAL\b", contents):
+      final_files.append(f.LocalPath())
+
+  if override_files:
+    return [output_api.PresubmitError(
+      'These files use OVERRIDE instead of using override:',
+      items=override_files)]
+  if final_files:
+    return [output_api.PresubmitError(
+      'These files use FINAL instead of using final:',
+      items=final_files)]
+
+  return []
+
 def CheckChangeOnUpload(input_api, output_api):
   results = []
   results += CheckAsserts(input_api, output_api)
   results += CheckStdAbs(input_api, output_api)
   results += CheckPassByValue(input_api, output_api)
   results += CheckChangeLintsClean(input_api, output_api)
   results += CheckTodos(input_api, output_api)
   results += CheckScopedPtr(input_api, output_api)
   results += CheckNamespace(input_api, output_api)
   results += CheckForUseOfWrongClock(input_api, output_api)
   results += FindUselessIfdefs(input_api, output_api)
+  results += CheckOverrideFinal(input_api, output_api)
   results += input_api.canned_checks.CheckPatchFormatted(input_api, output_api)
   return results
 
 def GetPreferredTryMasters(project, change):
   return {
     'tryserver.blink': {
       'linux_blink_rel': set(['defaulttests']),
     },
     'tryserver.chromium.gpu': {
       'linux_gpu': set(['defaulttests']),
       'mac_gpu': set(['defaulttests']),
       'win_gpu': set(['defaulttests']),
     },
   }