Add chromium_clang_upload bot for Linux.

masters/master.tryserver.chromium.linux/slaves.cfg

 # -*- python -*-
 # ex: set syntax=python:
 # Copyright 2014 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.
 
 # See master.experimental/slaves.cfg for documentation.
 
 def linux():
   cq_slaves = (range(111, 131) + range(162, 399) + range(427, 453) +
@@ skipping 24 matching lines @@
   optional_builders = [
     'Chromium Linux Codesearch Builder',
     'ChromiumOS Codesearch Builder',
     'linux_arm',
     'linux_chromium_asan_variable',
     'linux_chromium_chromeos_asan_variable',
     'linux_chromium_chromeos_compile_rel_ng',
     'linux_chromium_chromeos_dbg_ng',
     'linux_chromium_chromeos_msan_rel_ng',
     'linux_chromium_chromeos_variable',
+    'linux_chromium_clang_upload',
     'linux_chromium_compile_rel_ng',
     'linux_chromium_dbg_ng',
     'linux_chromium_gn_upload',
     'linux_chromium_msan_rel_ng',
     'linux_chromium_tsan_rel_ng',
     'linux_chromium_practice_rel_ng',
     'linux_chromium_variable',
     'linux_deterministic',
     'linux_ecs_ozone',
     'linux_nacl_sdk',
@@ skipping 78 matching lines @@
       ],
       'hostname': 'vm%d-m4' % i,
       'pool': 'linux_32',
     } for i in linux_32_slaves
   )
 
   return result
 
 
 slaves = linux()