Introduce the iOS consumer API.

ios/consumer/ios_consumer.gyp

Index: ios/consumer/ios_consumer.gyp
diff --git a/ios/consumer/ios_consumer.gyp b/ios/consumer/ios_consumer.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..9e6f7b627004d05e37f0d4dbc7301aab5278476a
--- /dev/null
+++ b/ios/consumer/ios_consumer.gyp
@@ -0,0 +1,24 @@
+# Copyright 2013 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.
+{
+  'variables': {
+    'chromium_code': 1,
+   },
+  'targets': [
+    {
+      'target_name': 'ios_consumer_base',
+      'type': 'static_library',
+      'dependencies': [
+        '../../base/base.gyp:base',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        'base/util.mm',
+        'public/base/util.h',
+      ],
+    },
+  ],
+}