Linux: change protobuf default option to allow building

chrome/browser/net/cert_logger.proto

 // Copyright (c) 2011 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.
 //
 // This protobuffer is intended to store reports from Chrome users of
 // certificate pinning errors. A report will be sent from Chrome when it gets
 // e.g. a certificate for google.com that chains up to a root CA not expected by
 // Chrome for that origin, such as DigiNotar (compromised in July 2011), or
 // other pinning errors such as a blacklisted cert in the chain. The
 // report from the user will include the hostname being accessed, 
 // the full certificate chain (in PEM format), and the
 // timestamp of when the client tried to access the site. A response is
 // generated by the frontend and logged, including validation and error checking
 // done on the client's input data.
 
 
 syntax = "proto2";
 
 package chrome_browser_net;
 
-// Chrome requires this.
-option optimize_for = LITE_RUNTIME;
-
 // Protocol types
 message CertLoggerRequest {
   // The hostname being accessed (required as the cert could be valid for
   // multiple hosts, e.g. a wildcard or a SubjectAltName.
   required string hostname = 1;
   // The certificate chain as a series of PEM-encoded certificates, including
   // intermediates but not necessarily the root.
   required string cert_chain = 2;
   // The time (in usec since the epoch) when the client attempted to access the
   // site generating the pinning error.
   required int64 time_usec = 3;
 };
 
 // The response sent back to the user.
 message CertLoggerResponse {
   enum ResponseCode {
     OK = 1;
     MALFORMED_CERT_DATA = 2;
     HOST_CERT_DONT_MATCH = 3;
     ROOT_NOT_RECOGNIZED = 4;
     ROOT_NOT_UNEXPECTED = 5;
     OTHER_ERROR = 6;
   };
   required ResponseCode response = 1;
 };