Move GcmApi test cases into separate subdir in order to use RunExtensionTest

chrome/test/data/extensions/api_test/gcm/functions/register/register.js

Index: chrome/test/data/extensions/api_test/gcm/functions/register/register.js
diff --git a/chrome/test/data/extensions/api_test/gcm/functions/register/register.js b/chrome/test/data/extensions/api_test/gcm/functions/register/register.js
new file mode 100644
index 0000000000000000000000000000000000000000..fb1039c86fa3527081b7ca843987a1d3910577b0
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/gcm/functions/register/register.js
@@ -0,0 +1,12 @@
+// 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.
+
+chrome.test.runTests([
+  function testRegister() {
+    var senderIds = ["Sender1", "Sender2"];
+    chrome.gcm.register(senderIds, function(registrationId) {
+      chrome.test.succeed();
+    });
+  }
+]);