replace OVERRIDE and FINAL with override and final in base/

base/PRESUBMIT.py

Index: base/PRESUBMIT.py
diff --git a/base/PRESUBMIT.py b/base/PRESUBMIT.py
index 732ac27e2a2ad81242510881a0978782f71229be..758a79053ae57eaeff62d1f39a468991817829d0 100644
--- a/base/PRESUBMIT.py
+++ b/base/PRESUBMIT.py
@@ -8,6 +8,10 @@ See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details on the presubmit API built into gcl.
 """
 
+import re
+
+BASE_SOURCE_FILES=(r'^base/.*\.(cc|h|mm)$',)
+
 def _CheckNoInterfacesInBase(input_api, output_api):
   """Checks to make sure no files in libbase.a have |@interface|."""
   pattern = input_api.re.compile(r'^\s*@interface', input_api.re.MULTILINE)
@@ -36,8 +40,45 @@ def _CommonChecks(input_api, output_api):
   results.extend(_CheckNoInterfacesInBase(input_api, output_api))
   return results
 
+def _CheckOverrideFinal(input_api, output_api,
+                       whitelist=BASE_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=BASE_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.extend(_CheckOverrideFinal(input_api, output_api))
   results.extend(_CommonChecks(input_api, output_api))
   return results