Add build and patch to Chrome-Proxy header

components/data_reduction_proxy/browser/data_reduction_proxy_auth_request_handler.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 COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_AUTH_REQUEST_HANDLER_H_
 #define COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_AUTH_REQUEST_HANDLER_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
@@ skipping 20 matching lines @@
 extern const char kClientAndroidWebview[];
 extern const char kClientChromeAndroid[];
 extern const char kClientChromeIOS[];
 
 class DataReductionProxyParams;
 
 class DataReductionProxyAuthRequestHandler {
  public:
   static bool IsKeySetOnCommandLine();
 
+  // Constructs a DataReductionProxyAuthRequestHandler object with the given
+  // client, version, params, and network task runner. The Chromium |version| is
+  // expected to be of the form "xx.xx.xx.xx". If it isn't of this form,
+  // |build_number_| and |patch_number_| are set to empty strings and not
+  // included in the header. http://crbug.com/410127 will change this so that
+  // the version is retrieved inside this constructor.
   DataReductionProxyAuthRequestHandler(
       const std::string& client,
       const std::string& version,
       DataReductionProxyParams* params,
       scoped_refptr<base::SingleThreadTaskRunner> network_task_runner);
 
   virtual ~DataReductionProxyAuthRequestHandler();
 
   // Adds a 'Chrome-Proxy' header to |request_headers| with the data reduction
   // proxy authentication credentials. Only adds this header if the provided
@@ skipping 22 matching lines @@
   virtual base::Time Now() const;
   virtual void RandBytes(void* output, size_t length);
 
   // Visible for testing.
   virtual std::string GetDefaultKey() const;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(DataReductionProxyAuthRequestHandlerTest,
                            Authorization);
   FRIEND_TEST_ALL_PREFIXES(DataReductionProxyAuthRequestHandlerTest,
+                           AuthorizationBogusVersion);
+  FRIEND_TEST_ALL_PREFIXES(DataReductionProxyAuthRequestHandlerTest,
                            AuthHashForSalt);
 
+  // Returns the number at |index| of |version|. If |version| isn't of the form
+  // xx.xx.xx.xx returns an empty string.
+  std::string GetChromiumVersionComponent(std::string version, int index);
+
   // Stores the supplied key and sets up credentials suitable for authenticating
   // with the data reduction proxy.
   void InitAuthentication(const std::string& key);
 
   // Generates a session ID and credentials suitable for authenticating with
   // the data reduction proxy.
   void ComputeCredentials(const base::Time& now,
                           std::string* session,
                           std::string* credentials);
 
   // Authentication state.
   std::string key_;
 
   // Lives on the IO thread.
   std::string session_;
   std::string credentials_;
 
   // Name of the client and version of the data reduction proxy protocol to use.
   // Both live on the IO thread.
   std::string client_;
-  std::string version_;
+  std::string build_number_;
+  std::string patch_number_;
 
   // The last time the session was updated. Used to ensure that a session is
   // never used for more than twenty-four hours.
   base::Time last_update_time_;
 
   DataReductionProxyParams* data_reduction_proxy_params_;
 
   scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyAuthRequestHandler);
 };
 
 }  // namespace data_reduction_proxy
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_AUTH_REQUEST_HANDLER_H_