swarming: change meaning of inputs_ref

appengine/swarming/handlers_bot.py

Index: appengine/swarming/handlers_bot.py
diff --git a/appengine/swarming/handlers_bot.py b/appengine/swarming/handlers_bot.py
index e8f9256baa3f91e93e10e8df62e91926f0cf4ecc..d73230fb790ce9b19dea4851f1d2bee94e7207a8 100644
--- a/appengine/swarming/handlers_bot.py
+++ b/appengine/swarming/handlers_bot.py
@@ -379,6 +379,21 @@ class BotPollHandler(_BotBaseHandler):
       cmd = request.properties.commands[0]
     elif request.properties.command:
       cmd = request.properties.command
+
+    isolated = None
+    if request.properties.inputs_ref:
+      isolated = {
+        'input': request.properties.inputs_ref.isolated,
+        'server': request.properties.inputs_ref.isolatedserver,
+        'namespace': request.properties.inputs_ref.namespace,
+      }
+    elif request.properties.outputs_target:
+      isolated = {
+        'input': None,
+        'server': request.properties.inputs_ref.isolatedserver,
+        'namespace': request.properties.inputs_ref.namespace,
+      }
+
     out = {
       'cmd': 'run',
       'manifest': {
@@ -391,7 +406,7 @@ class BotPollHandler(_BotBaseHandler):
         'hard_timeout': request.properties.execution_timeout_secs,
         'host': utils.get_versioned_hosturl(),
         'io_timeout': request.properties.io_timeout_secs,
-        'inputs_ref': request.properties.inputs_ref,
+        'isolated': isolated,
         'packages': [
           {
             'package_name': p.package_name,