Turn on clang format as an upload step for all the repo.

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 305 matching lines @@
   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 += CheckDoubleAngles(input_api, output_api)
   results += CheckUniquePtr(input_api, output_api)
   results += CheckNamespace(input_api, output_api)
   results += CheckForUseOfWrongClock(input_api, output_api)
   results += FindUselessIfdefs(input_api, output_api)
-  results += input_api.canned_checks.CheckPatchFormatted(input_api, output_api)
   return results
 
 def PostUploadHook(cl, change, output_api):
   """git cl upload will call this hook after the issue is created/modified.
 
   This hook adds extra try bots list to the CL description in order to run
   Blink tests in addition to CQ try bots.
   """
   rietveld_obj = cl.RpcServer()
   issue = cl.issue
   description = rietveld_obj.get_description(issue)
   if re.search(r'^CQ_INCLUDE_TRYBOTS=.*', description, re.M | re.I):
     return []
 
   bots = [
     'master.tryserver.blink:linux_trusty_blink_rel',
   ]
 
   results = []
   new_description = description
   new_description += '\nCQ_INCLUDE_TRYBOTS=%s' % ';'.join(bots)
   results.append(output_api.PresubmitNotifyResult(
       'Automatically added Blink trybots to run Blink tests on CQ.'))
 
   if new_description != description:
     rietveld_obj.update_description(issue, new_description)
 
   return results