swarming: Enable USB resets in python-adb on the staging instance.

appengine/swarming/swarming_bot/api/platforms/android.py

Index: appengine/swarming/swarming_bot/api/platforms/android.py
diff --git a/appengine/swarming/swarming_bot/api/platforms/android.py b/appengine/swarming/swarming_bot/api/platforms/android.py
index 9132d7dcddda7f68809b69d3fd71752d0f9479a8..da3c1f7072e61ba8a1741b809ba5d5b4c8aa9e27 100644
--- a/appengine/swarming/swarming_bot/api/platforms/android.py
+++ b/appengine/swarming/swarming_bot/api/platforms/android.py
@@ -109,9 +109,12 @@ def initialize(pub_key, priv_key):
 def get_devices(bot, endpoints=None):
   devices = []
   if not gce.is_gce():
+    # TODO(bpastene) Remove this check and all associated logic after
+    # experiment from crbug.com/642440 is complete.
+    enable_resets = bot.server and '-dev' in bot.server

[bpastene, 2016/10/07 22:57:58]

Anyone know a better is_staging check?

[ghost stip (do not use), 2016/10/07 23:50:26]

IIRC this is correct but double-check with maruel

[M-A Ruel, 2016/10/11 19:34:02]

Make it a flag, use bot_config.is_staging() to pass this flag. Add the function
back, it was removed in https://chromereviews.googleplex.com/491247013.

[bpastene, 2016/10/11 20:09:53]

Done: https://chromereviews.googleplex.com/519447013/

     devices += high.GetLocalDevices(
       'swarming', 10000, 10000, on_error=bot.post_error if bot else None,
-      as_root=False)
+      as_root=False, enable_resets=enable_resets)
 
   if endpoints:
     devices += high.GetRemoteDevices(