Provide mutable members of UrlRequestContext via pure-virtual interface

chrome/browser/safe_browsing/safe_browsing_service.h

 // Copyright (c) 2012 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.
 //
 // The Safe Browsing service is responsible for downloading anti-phishing and
 // anti-malware tables and checking urls against them.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 
@@ skipping 24 matching lines @@
 class SafeBrowsingDatabase;
 class SafeBrowsingProtocolManager;
 class SafeBrowsingServiceFactory;
 class SafeBrowsingURLRequestContextGetter;
 
 namespace base {
 class Thread;
 }
 
 namespace net {
+class HttpUserAgentSettings;
 class URLRequestContext;
 class URLRequestContextGetter;
 }
 
 namespace safe_browsing {
 class ClientSideDetectionService;
 class DownloadProtectionService;
 }
 
 // Construction needs to happen on the main thread.
@@ skipping 456 matching lines @@
   SafeBrowsingDatabase* database_;
 
   // Lock used to prevent possible data races due to compiler optimizations.
   mutable base::Lock database_lock_;
 
   // The SafeBrowsingURLRequestContextGetter used to access
   // |url_request_context_|.
   scoped_refptr<net::URLRequestContextGetter>
       url_request_context_getter_;
 
-  // The SafeBrowsingURLRequestContext.
+  // URLRequestContext and HttpUserAgentSettings for SafeBrowsing.
   scoped_ptr<net::URLRequestContext> url_request_context_;
+  scoped_ptr<net::HttpUserAgentSettings> http_user_agent_settings_;
 
   // Handles interaction with SafeBrowsing servers.
   SafeBrowsingProtocolManager* protocol_manager_;
 
   // Only access this whitelist from the UI thread.
   std::vector<WhiteListedEntry> white_listed_entries_;
 
   // Whether the service is running. 'enabled_' is used by SafeBrowsingService
   // on the IO thread during normal operations.
   bool enabled_;
@@ skipping 64 matching lines @@
 class SafeBrowsingServiceFactory {
  public:
   SafeBrowsingServiceFactory() { }
   virtual ~SafeBrowsingServiceFactory() { }
   virtual SafeBrowsingService* CreateSafeBrowsingService() = 0;
  private:
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingServiceFactory);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_