[GCM] Fix gcm login to properly identify chrome

google_apis/gcm/gcm_client_impl_unittest.cc

 // Copyright 2014 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 "google_apis/gcm/gcm_client_impl.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/test/simple_test_clock.h"
@@ skipping 69 matching lines @@
 
  private:
   uint64 last_android_id_;
   uint64 last_security_token_;
   uint8 last_message_tag_;
   mcs_proto::DataMessageStanza last_data_message_stanza_;
 };
 
 FakeMCSClient::FakeMCSClient(base::Clock* clock,
                              ConnectionFactory* connection_factory)
-    : MCSClient(clock, connection_factory, NULL),
+    : MCSClient("", clock, connection_factory, NULL),
       last_android_id_(0u),
       last_security_token_(0u),
       last_message_tag_(kNumProtoTypes) {
 }
 
 FakeMCSClient::~FakeMCSClient() {
 }
 
 void FakeMCSClient::set_gcm_store(GCMStore* gcm_store) {
   SetGCMStoreForTesting(gcm_store);
@@ skipping 346 matching lines @@
   EXPECT_EQ("007", mcs_client()->last_data_message_stanza().id());
   EXPECT_EQ(1, mcs_client()->last_data_message_stanza().device_user_id());
   EXPECT_EQ("gcm@chrome.com", mcs_client()->last_data_message_stanza().from());
   EXPECT_EQ("project_id", mcs_client()->last_data_message_stanza().to());
   EXPECT_EQ("key", mcs_client()->last_data_message_stanza().app_data(0).key());
   EXPECT_EQ("value",
             mcs_client()->last_data_message_stanza().app_data(0).value());
 }
 
 }  // namespace gcm