Address scottmg comments from https://codereview.chromium.org/1003273007/.

test/mac/lto/test.gyp

Index: test/mac/lto/test.gyp
diff --git a/test/mac/lto/test.gyp b/test/mac/lto/test.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..0a8e85183d781071624e8e26e0140fa86587e855
--- /dev/null
+++ b/test/mac/lto/test.gyp
@@ -0,0 +1,35 @@
+# Copyright (c) 2015 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': 'lto',
+      'type': 'shared_library',
+      'sources': [
+        'cfile.c',
+        'mfile.m',
+        'ccfile.cc',
+        'mmfile.mm',
+        'asmfile.S',
+      ],
+      'xcode_settings': {
+        'LLVM_LTO': 'YES',
+      },
+    },
+    {
+      'target_name': 'lto_static',
+      'type': 'static_library',
+      'sources': [
+        'cfile.c',
+        'mfile.m',
+        'ccfile.cc',
+        'mmfile.mm',
+        'asmfile.S',
+      ],
+      'xcode_settings': {
+        'LLVM_LTO': 'YES',
+      },
+    },
+  ],
+}