Add unit_tests bundle as a default compile target for Android.

Since With this change we will start compiling unit_tests_apk on the main
waterfall, we are making android a default try bot.

To be submitted after we have increased our capacity to handle the extra
load.

BUG=117407
TEST=


Review URL: https://chromiumcodereview.appspot.com/10808022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@147453 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 009df4c..ba38fedc 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -510,12 +510,10 @@
   if all(re.search('[/_]android[/_.]', f) for f in files):
     return ['android']
 
-  trybots = ['win_rel', 'linux_rel', 'mac_rel', 'linux_clang:compile']
+  trybots = ['win_rel', 'linux_rel', 'mac_rel', 'linux_clang:compile',
+             'android']
   # match things like aurax11.cc or aura_oak.cc
   if any(re.search('[/_]aura', f) for f in files):
     trybots.append('linux_chromeos')
 
-  if not all(f.startswith('chrome/') for f in files):
-    trybots.append('android')
-
   return trybots