ninja/mac: Don't choke on bundles that have no 'sources'.

test/mac/sourceless-module/test.gyp

Index: test/mac/sourceless-module/test.gyp
===================================================================
--- test/mac/sourceless-module/test.gyp	(revision 0)
+++ test/mac/sourceless-module/test.gyp	(revision 0)
@@ -0,0 +1,39 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+{
+  'targets': [
+    {
+      'target_name': 'empty_bundle',
+      'type': 'loadable_module',
+      'mac_bundle': 1,
+    },
+    {
+      'target_name': 'resource_bundle',
+      'type': 'loadable_module',
+      'mac_bundle': 1,
+      'actions': [
+        {
+          'action_name': 'Add Resource',
+          'inputs': [],
+          'outputs': [
+            '<(INTERMEDIATE_DIR)/app_manifest/foo.manifest',
+          ],
+          'action': [
+            'touch', '<(INTERMEDIATE_DIR)/app_manifest/foo.manifest',
+          ],
+          'process_outputs_as_mac_bundle_resources': 1,
+        },
+      ],
+    },
+    {
+      'target_name': 'dependent_on_resource_bundle',
+      'type': 'executable',
+      'sources': [ 'empty.c' ],
+      'dependencies': [
+        'resource_bundle',
+      ],
+    },
+  ],
+}
+
Property changes on: test/mac/sourceless-module/test.gyp
___________________________________________________________________
Added: svn:eol-style
   + LF