Adding the initial code for Omnibot multi-machine support

testing/legion/examples/hello_world/host_test.isolate

Index: testing/legion/examples/hello_world/host_test.isolate
diff --git a/testing/legion/examples/hello_world/host_test.isolate b/testing/legion/examples/hello_world/host_test.isolate
new file mode 100644
index 0000000000000000000000000000000000000000..a933d90f80d9d099c0b3d976de049c7017119558
--- /dev/null
+++ b/testing/legion/examples/hello_world/host_test.isolate
@@ -0,0 +1,25 @@
+# Copyright 2015 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.
+
+{
+  'includes': [
+    '../../legion.isolate'
+  ],
+  'conditions': [
+    ['os=="Linux"', {

[Marc-Antoine Ruel (Google), 2015/01/30 18:00:21]

Why lock this to linux?

[Mike Meade, 2015/01/30 21:04:04]

Done.

+      'variables': {
+        'command': [
+          'host_test.py',
+          '--swarming-server=https://omnibot-swarming-server.appspot.com/',

[Marc-Antoine Ruel (Google), 2015/01/30 18:00:21]

https:// and / are not necessary.

[Mike Meade, 2015/01/30 21:04:04]

Done.

+          '--isolate-server=omnibot-isolate-server.appspot.com',
+        ],
+        'files': [
+          'host_test.py',
+          'client_test.py',
+          'client_test.isolate'
+        ],
+      },
+    }],
+  ],
+}