[GCM] Move the manifest key checking logic to gcm.register function

chrome/browser/extensions/api/gcm/gcm_apitest.cc

 // 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.
 
 #include "base/run_loop.h"
 #include "chrome/browser/extensions/api/gcm/gcm_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/services/gcm/fake_gcm_profile_service.h"
 #include "chrome/browser/services/gcm/gcm_client_factory.h"
@@ skipping 83 matching lines @@
   EXPECT_EQ("26469186F238EE08FA71C38311C6990F61D40DCA",
             service()->last_registered_cert());
   const std::vector<std::string>& sender_ids =
       service()->last_registered_sender_ids();
   EXPECT_TRUE(std::find(sender_ids.begin(), sender_ids.end(), "Sender1") !=
                   sender_ids.end());
   EXPECT_TRUE(std::find(sender_ids.begin(), sender_ids.end(), "Sender2") !=
                   sender_ids.end());
 }
 
+IN_PROC_BROWSER_TEST_F(GcmApiTest, RegisterWithoutKey) {
+  if (ShouldSkipTest())
+    return;
+
+  ASSERT_TRUE(RunExtensionTest("gcm/functions/register_without_key"));
+}
+
 IN_PROC_BROWSER_TEST_F(GcmApiTest, SendValidation) {
   if (ShouldSkipTest())
     return;
 
   ASSERT_TRUE(RunExtensionTest("gcm/functions/send"));
 }
 
 IN_PROC_BROWSER_TEST_F(GcmApiTest, SendMessageData) {
   if (ShouldSkipTest())
     return;
@@ skipping 76 matching lines @@
   ResultCatcher incognito_catcher;
   incognito_catcher.RestrictToProfile(profile()->GetOffTheRecordProfile());
 
   ASSERT_TRUE(RunExtensionTestIncognito("gcm/functions/incognito"));
 
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
   EXPECT_TRUE(incognito_catcher.GetNextResult()) << incognito_catcher.message();
 }
 
 }  // namespace extensions