Fix an invalid DCHECK for media request context

chrome/browser/net/chrome_url_request_context.h

 // Copyright (c) 2006-2008 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.
 
 #include "base/file_path.h"
 #include "chrome/common/net/cookie_monster_sqlite.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/pref_service.h"
 #include "net/url_request/url_request_context.h"
 
@@ skipping 43 matching lines @@
     return user_script_dir_path_;
   }
 
   virtual const std::string& GetUserAgent(const GURL& url) const;
 
  private:
   // Private constructor, use the static factory methods instead. This is
   // expected to be called on the UI thread.
   ChromeURLRequestContext(Profile* profile);
 
+  // Create a request context for media resources from a regular request
+  // context. This helper method is called from CreateOriginalForMedia and
+  // CreateOffTheRecordForMedia.
+  static ChromeURLRequestContext* CreateRequestContextForMedia(Profile* profile,
+      const FilePath& disk_cache_path);
+
   // NotificationObserver implementation.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // Callback for when the accept language changes.
   void OnAcceptLanguageChange(std::string accept_language);
 
   // Callback for when the cookie policy changes.
   void OnCookiePolicyChange(net::CookiePolicy::Type type);
 
   // Callback for when new extensions are loaded.
   void OnNewExtensions(ExtensionPaths* new_paths);
 
   // Destructor.
   virtual ~ChromeURLRequestContext();
 
   // Maps extension IDs to paths on disk. This is initialized in the
   // construtor and updated when extensions changed.
   ExtensionPaths extension_paths_;
 
   // Path to the directory user scripts are stored in.
   FilePath user_script_dir_path_;
 
   scoped_ptr<SQLitePersistentCookieStore> cookie_db_;
   PrefService* prefs_;
   bool is_off_the_record_;
 };