Trybots need to opt-in win_aura when aura files are changed

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 Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
@@ skipping 574 matching lines @@
     return ['mac_rel']
   if all(re.search('[/_]win[/_.]', f) for f in files):
     return ['win_rel']
   if all(re.search('[/_]android[/_.]', f) for f in files):
     return ['android']
 
   trybots = ['win_rel', 'linux_rel', 'mac_rel', 'linux_clang:compile',
              'android']
 
   # Match things like path/aura/file.cc and path/file_aura.cc.
-  # Same for chromeos.
-  if any(re.search('[/_](aura|chromeos)', f) for f in files):
-    trybots += ['linux_chromeos', 'linux_chromeos_clang:compile']
+  # Same for ash and chromeos.
+  if any(re.search('[/_](ash|aura)', f) for f in files):
+    trybots += ['linux_chromeos', 'linux_chromeos_clang:compile', 'win_aura']
+  else:
+    if any(re.search('[/_]chromeos', f) for f in files):
+      trybots += ['linux_chromeos', 'linux_chromeos_clang:compile']
 
   return trybots