Add checks to DEBUG mode that no instance of URLRequest or URLFetcher survive...

chrome/browser/browser_process_impl.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.
 
 // When each service is created, we set a flag indicating this. At this point,
 // the service initialization could fail or succeed. This allows us to remember
 // if we tried to create a service, and not try creating it over and over if
 // the creation failed.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_
@@ skipping 175 matching lines @@
   }
 
   virtual base::WaitableEvent* shutdown_event() {
     return shutdown_event_.get();
   }
 
  private:
   void CreateResourceDispatcherHost();
   void CreatePrefService();
   void CreateMetricsService();
+
   void CreateIOThread();
+  void ResetIOThread();
+  static void CleanupOnIOThread();
+
   void CreateFileThread();
   void CreateDBThread();
   void CreateTemplateURLModel();
   void CreateProfileManager();
   void CreateWebDataService();
   void CreateLocalState();
   void CreateViewedPageTracker();
   void CreateIconManager();
   void CreateDebuggerWrapper(int port);
   void CreateDevToolsManager();
@@ skipping 62 matching lines @@
   // nothing in the cosntructor so we don't have to worry about lazy init.
   ThumbnailGenerator thumbnail_generator_;
 
   // An event that notifies when we are shutting-down.
   scoped_ptr<base::WaitableEvent> shutdown_event_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_