Allow content to get the system request context, a request context not tied to any profile.

chrome/browser/chrome_content_browser_client.h

 // Copyright (c) 2011 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_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 97 matching lines @@
   virtual void UpdateInspectorSetting(RenderViewHost* rvh,
                                       const std::string& key,
                                       const std::string& value) OVERRIDE;
   virtual void ClearInspectorSettings(RenderViewHost* rvh) OVERRIDE;
   virtual void BrowserURLHandlerCreated(BrowserURLHandler* handler) OVERRIDE;
   virtual void ClearCache(RenderViewHost* rvh) OVERRIDE;
   virtual void ClearCookies(RenderViewHost* rvh) OVERRIDE;
   virtual FilePath GetDefaultDownloadDirectory() OVERRIDE;
   virtual net::URLRequestContextGetter*
       GetDefaultRequestContextDeprecatedCrBug64339() OVERRIDE;
+  virtual net::URLRequestContextGetter* GetSystemRequestContext() OVERRIDE;
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   // Can return an optional fd for crash handling, otherwise returns -1.
   virtual int GetCrashSignalFD(const std::string& process_type) OVERRIDE;
 #endif
 #if defined(OS_WIN)
   virtual const wchar_t* GetResourceDllName() OVERRIDE;
 #endif
 #if defined(USE_NSS)
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) OVERRIDE;
 #endif
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_