AppCaches which belong to hosted apps are not protected from deletion

content/browser/appcache/chrome_appcache_service.h

Index: content/browser/appcache/chrome_appcache_service.h
diff --git a/content/browser/appcache/chrome_appcache_service.h b/content/browser/appcache/chrome_appcache_service.h
index d325b376d443b6f575c1dbd627ad168d8aa72df5..6e623e90ffe880c24c93eb1246e341feb65377e1 100644
--- a/content/browser/appcache/chrome_appcache_service.h
+++ b/content/browser/appcache/chrome_appcache_service.h
@@ -40,10 +40,7 @@ class ChromeAppCacheService
   void InitializeOnIOThread(
       const FilePath& cache_path,  // may be empty to use in-memory structures
       const content::ResourceContext* resource_context,
-      scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy,
-      bool clear_local_state_on_exit);
-
-  void SetClearLocalStateOnExit(bool clear_local_state);
+      scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy);
 
  private:
   friend class BrowserThread;
@@ -63,7 +60,6 @@ class ChromeAppCacheService
 
   const content::ResourceContext* resource_context_;
   NotificationRegistrar registrar_;
-  bool clear_local_state_on_exit_;
   FilePath cache_path_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeAppCacheService);