Use non-static set_key interface on DataReductionProxySettings

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/strings/string16.h"
 #include "base/time/time.h"
 
 namespace net {
 class AuthChallengeInfo;
 }
 
 namespace data_reduction_proxy {
 
+class DataReductionProxySettings;
+
 class DataReductionProxyAuthRequestHandler {
  public:
   enum TryHandleResult {
     TRY_HANDLE_RESULT_IGNORE,
     TRY_HANDLE_RESULT_PROCEED,
     TRY_HANDLE_RESULT_CANCEL
   };
 
-  DataReductionProxyAuthRequestHandler();
+  // Constructs an authentication request handler and takes a pointer to a
+  // |settings| object, which must outlive the handler.
+  explicit DataReductionProxyAuthRequestHandler(
+      DataReductionProxySettings* settings);
   virtual ~DataReductionProxyAuthRequestHandler();
 
   // Returns |PROCEED| if the authentication challenge provided is one that the
   // data reduction proxy should handle and |IGNORE| if not. Returns |CANCEL| if
   // there are a string of |MAX_BACK_TO_BACK_FAILURES| successive retries.
   TryHandleResult TryHandleAuthentication(net::AuthChallengeInfo* auth_info,
                                           base::string16* user,
                                           base::string16* password);
 
  protected:
@@ skipping 21 matching lines @@
   // The number of back to back data reduction proxy authentication failures
   // that occurred with no more than |MIN_AUTH_REQUEST_INTERVAL_MS| between each
   // adjacent pair of them.
   static int back_to_back_failure_count_;
 
   // System timestamp of the last data reduction proxy auth token invalidation.
   // This is used to expire old tokens on back-to-back failures, and distinguish
   // invalidation from repeat failures due to the client not being authorized.
   static int64 auth_token_invalidation_timestamp_;
 
+  // Settings object for the data reduction proxy. Must outlive the handler.
+  DataReductionProxySettings* settings_;
+
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyAuthRequestHandler);
 };
 
 }  // namespace data_reduction_proxy
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_AUTH_REQUEST_HANDLER_H_