Clean up final uses of scoped_ptr<T>::PassAs() and remove it.

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 173 matching lines @@
       if re.search(r'(=|\breturn)\s*scoped_ptr<.*?(?<!])>\([^)]+\)', line):
         errors.append(output_api.PresubmitError(
           ('%s:%d uses explicit scoped_ptr constructor. ' +
            'Use make_scoped_ptr() instead.') % (f.LocalPath(), line_number)))
       # Disallow:
       # scoped_ptr<T>()
       if re.search(r'\bscoped_ptr<.*?>\(\)', line):
         errors.append(output_api.PresubmitError(
           '%s:%d uses scoped_ptr<T>(). Use nullptr instead.' %
           (f.LocalPath(), line_number)))
-      # Disallow:
-      # foo.PassAs<T>();
-      if re.search(r'\bPassAs<.*?>\(\)', line):
-        errors.append(output_api.PresubmitError(
-          '%s:%d uses PassAs<T>(). Use Pass() instead.' %
-          (f.LocalPath(), line_number)))
   return errors
 
 def FindUnquotedQuote(contents, pos):
   match = re.search(r"(?<!\\)(?P<quote>\")", contents[pos:])
   return -1 if not match else match.start("quote") + pos
 
 def FindUselessIfdefs(input_api, output_api):
   errors = []
   source_file_filter = lambda x: x
   for f in input_api.AffectedSourceFiles(source_file_filter):
@@ skipping 173 matching lines @@
   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']),
     },
   }