Fix GN builds to include build and patch in Chrome-Proxy header.

components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h b/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
index 7ab5e36006080eb9d53cb26220daf162d28901aa..556559610dcae11ae2f093663c270f9631ff30bd 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
@@ -139,18 +139,6 @@ class DataReductionProxyRequestOptions {
   FRIEND_TEST_ALL_PREFIXES(DataReductionProxyRequestOptionsTest,
                            AuthHashForSalt);
 
-  // Returns the version of Chromium that is being used.
-  std::string ChromiumVersion() const;
-
-  // Returns the build and patch numbers of |version|. If |version| isn't of the
-  // form xx.xx.xx.xx build and patch are not modified.
-  void GetChromiumBuildAndPatch(const std::string& version,
-                                std::string* build,
-                                std::string* patch) const;
-
-  // Updates client type, build, and patch.
-  void UpdateVersion();
-
   // Updates the value of the experiments to be run and regenerate the header if
   // necessary.
   void UpdateExperiments();
@@ -187,7 +175,6 @@ class DataReductionProxyRequestOptions {
 
   // Name of the client and version of the data reduction proxy protocol to use.
   std::string client_;
-  std::string version_;
   std::string session_;
   std::string credentials_;
   std::string secure_session_;