Move cleanup that happens on IO thread destruction to content, so that not every embedder has to ...

content/browser/browser_process_sub_thread.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 CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_
 #define CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "content/browser/browser_thread_impl.h"
@@ skipping 17 matching lines @@
 class CONTENT_EXPORT BrowserProcessSubThread : public BrowserThreadImpl {
  public:
   explicit BrowserProcessSubThread(BrowserThread::ID identifier);
   virtual ~BrowserProcessSubThread();
 
  protected:
   virtual void Init() OVERRIDE;
   virtual void CleanUp() OVERRIDE;
 
  private:
+  // These methods encapsulate cleanup that needs to happen on the IO thread
+  // before/after we call the embedder's CleanUp function.
+  void IOThreadPreCleanUp();
+  void IOThreadPostCleanUp();
+
   // Each specialized thread has its own notification service.
   // Note: We don't use scoped_ptr because the destructor runs on the wrong
   // thread.
   NotificationService* notification_service_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessSubThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_