Reland [swarming] Isolate v8 testing.

test/developer_default.gyp

Index: test/developer_default.gyp
diff --git a/test/developer_default.gyp b/test/developer_default.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..4da73aa15150c72f3d9ff55550cbaabc96ddfb5b
--- /dev/null
+++ b/test/developer_default.gyp
@@ -0,0 +1,27 @@
+# Copyright 2015 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'conditions': [
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'developer_default_run',
+          'type': 'none',
+          'dependencies': [
+            'default.gyp:default_run',
+            'unittests/unittests.gyp:unittests_run',
+          ],
+          'includes': [
+            '../build/features.gypi',
+            '../build/isolate.gypi',
+          ],
+          'sources': [
+            'developer_default.isolate',
+          ],
+        },
+      ],
+    }],
+  ],
+}