Update PRESUBMIT.py to be less likely to hit the android bot.

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 290 matching lines @@
       input_api, output_api))
   results.extend(_CheckSubversionConfig(input_api, output_api))
   return results
 
 
 def GetPreferredTrySlaves(project, change):
   affected_files = change.LocalPaths()
   only_objc_files = all(f.endswith(('.mm', '.m')) for f in affected_files)
   if only_objc_files:
     return ['mac_rel']
-  preferred = ['win_rel', 'linux_rel', 'mac_rel', 'android']
+  preferred = ['win_rel', 'linux_rel', 'mac_rel']
   if any(f.endswith(('.h', '.cc', '.cpp', '.cxx')) for f in affected_files):
     preferred.append('linux_clang')
   aura_re = '_aura[^/]*[.][^/]*'
   if any(re.search(aura_re, f) for f in affected_files):
     preferred.append('linux_chromeos')
+  # Nothing in chrome/
+  android_re_list = ('^base/', '^ipc/', '^net/', '^sql/', '^jingle/',

[M-A Ruel, 2012/03/01 21:21:40]

Can you put them one per line in sorted order?

+                     '^content/', '^media/',
+                     '^build/common.gypi$')
+  # Nothing that looks like win-only or aura-only
+  win_re = '_win\.(cc|h)$'
+  possibly_android = True
+  for non_android_re in (aura_re, win_re):

[M-A Ruel, 2012/03/01 21:21:40]

if any(
    all(re.search(r, f) for f in affected_files)
    for r in (aura_re, win_re)):

but I guess this becomes unreadable so ignore that.

+    if all(re.search(non_android_re, f) for f in affected_files):
+      possibly_android = False
+      break
+  if possibly_android:
+    for f in change.AffectedFiles():
+      if any(re.search(r, f.LocalPath()) for r in android_re_list):
+        preferred.append('android')
+        break
   return preferred