[GCM] Fix gcm login to properly identify chrome

google_apis/gcm/base/mcs_util.h

 // 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.
 //
 // Utility methods for MCS interactions.
 
 #ifndef GOOGLE_APIS_GCM_BASE_MCS_UTIL_H_
 #define GOOGLE_APIS_GCM_BASE_MCS_UTIL_H_
 
 #include <string>
@@ skipping 40 matching lines @@
 
 enum MCSIqStanzaExtension {
   kSelectiveAck = 12,
   kStreamAck = 13,
 };
 
 // Builds a LoginRequest with the hardcoded local data.
 GCM_EXPORT scoped_ptr<mcs_proto::LoginRequest> BuildLoginRequest(
     uint64 auth_id,
     uint64 auth_token,
+    const std::string& version_string,
     const std::vector<int64>& user_serial_numbers);
 
 // Builds a StreamAck IqStanza message.
 GCM_EXPORT scoped_ptr<mcs_proto::IqStanza> BuildStreamAck();
 GCM_EXPORT scoped_ptr<mcs_proto::IqStanza> BuildSelectiveAck(
     const std::vector<std::string>& acked_ids);
 
 // Utility methods for building and identifying MCS protobufs.
 GCM_EXPORT scoped_ptr<google::protobuf::MessageLite>
     BuildProtobufFromTag(uint8 tag);
@@ skipping 14 matching lines @@
 // Returns whether the TTL (time to live) for this message has expired, based
 // on the |sent| timestamps and base::TimeTicks::Now(). If |protobuf| is not
 // for a DataMessageStanza or the TTL is 0, will return false.
 GCM_EXPORT bool HasTTLExpired(const google::protobuf::MessageLite& protobuf,
                               base::Clock* clock);
 GCM_EXPORT int GetTTL(const google::protobuf::MessageLite& protobuf);
 
 }  // namespace gcm
 
 #endif  // GOOGLE_APIS_GCM_BASE_MCS_UTIL_H_