Add build and patch to Chrome-Proxy header

chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h

 // 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.
 
 #ifndef CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_
 #define CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_settings.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ skipping 28 matching lines @@
   virtual ~DataReductionProxyChromeSettings();
 
   // Initialize the settings object with the given configurator, prefs services,
   // and request context.
   void InitDataReductionProxySettings(
       data_reduction_proxy::DataReductionProxyConfigurator* configurator,
       PrefService* profile_prefs,
       PrefService* local_state_prefs,
       net::URLRequestContextGetter* request_context);
 
-  // Using the chrome::VersionInfo version, returns the build and patch portion
-  // of the string delimited by a period. If the chrome::VersionInfo version
-  // isn't of the form xx.xx.xx.xx returns an empty string.
-  static std::string GetBuildAndPatchNumber();
+  // Using the chrome::VersionInfo version, returns the build number of the
+  // chrome version. If the chrome::VersionInfo version isn't of the form
+  // xx.xx.xx.xx returns an empty string.
+  static std::string GetBuildNumber();
+
+  // Using the chrome::VersionInfo version, returns the patch number of the
+  // chrome version. If the chrome::VersionInfo version isn't of the form
+  // xx.xx.xx.xx returns an empty string.
+  static std::string GetPatchNumber();
 
   // Gets the client type for the data reduction proxy.
   static std::string GetClient();
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(DataReductionProxyChromeSettingsTest,
+                           TestGetBuildNumber);
+  FRIEND_TEST_ALL_PREFIXES(DataReductionProxyChromeSettingsTest,
+                           TestGetPatchNumber);
+
   // Registers the DataReductionProxyEnabled synthetic field trial with
   // the group |data_reduction_proxy_enabled|.
   void RegisterSyntheticFieldTrial(bool data_reduction_proxy_enabled);
 
+  // Using |version|, returns the build number of the string. If |version|
+  // isn't of the form xx.xx.xx.xx returns an empty string.
+  static std::string GetBuildNumberFromString(std::string version);
+
+  // Using |version|, returns the patch number of the string. If |version|
+  // isn't of the form xx.xx.xx.xx returns an empty string.
+  static std::string GetPatchNumberFromString(std::string version);
+
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyChromeSettings);
 };
 
 #endif  // CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_