[GCM] API update to allow only a single sender in registration

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

Index: chrome/browser/extensions/api/gcm/gcm_apitest.cc
diff --git a/chrome/browser/extensions/api/gcm/gcm_apitest.cc b/chrome/browser/extensions/api/gcm/gcm_apitest.cc
index c463ed948058680fd4c5473381b92b18545fd98f..67402fdbdbc7520b53454c6012fad7370402de68 100644
--- a/chrome/browser/extensions/api/gcm/gcm_apitest.cc
+++ b/chrome/browser/extensions/api/gcm/gcm_apitest.cc
@@ -106,12 +106,7 @@ IN_PROC_BROWSER_TEST_F(GcmApiTest, Register) {
   // SHA1 of the public key provided in manifest.json.
   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());
+  EXPECT_EQ("Sender1", service()->last_registered_sender_id());
 }
 
 IN_PROC_BROWSER_TEST_F(GcmApiTest, RegisterWithoutKey) {