First pass at fixing guest browser cookies issue.

chrome/browser/profiles/profile_destroyer.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.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_
 
 #include <set>
 
 #include "base/memory/ref_counted.h"
 #include "base/timer/timer.h"
 #include "content/public/browser/render_process_host_observer.h"
 
 class Profile;
 
 namespace content {
 class RenderProcessHost;
 }
 
 // We use this class to destroy the off the record profile so that we can make
 // sure it gets done asynchronously after all render process hosts are gone.
 class ProfileDestroyer : public content::RenderProcessHostObserver {
  public:
   static void DestroyProfileWhenAppropriate(Profile* const profile);
   static void DestroyOffTheRecordProfileNow(Profile* const profile);
 
+  // If the Guest Profile is ready to be destroyed, do so.
+  static void DestroyGuestProfileIfAppropriate();
+
  private:
   typedef std::set<content::RenderProcessHost*> HostSet;
   typedef std::set<ProfileDestroyer*> DestroyerSet;
 
   friend class base::RefCounted<ProfileDestroyer>;
 
   ProfileDestroyer(Profile* const profile, HostSet* hosts);
   ~ProfileDestroyer() override;
 
   // content::RenderProcessHostObserver override.
@@ skipping 18 matching lines @@
   // The profile being destroyed. If it is set to NULL, it is a signal from
   // another instance of ProfileDestroyer that this instance is canceled.
   Profile* profile_;
 
   base::WeakPtrFactory<ProfileDestroyer> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileDestroyer);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_DESTROYER_H_