Revert of ServiceWorker: Use SimpleCache for the script cache

content/browser/appcache/appcache_disk_cache.h

Index: content/browser/appcache/appcache_disk_cache.h
diff --git a/content/browser/appcache/appcache_disk_cache.h b/content/browser/appcache/appcache_disk_cache.h
index 9165e1d8a15da84a2c7264546f37b137da79367c..d4a7723423f1a47aa895a5c217208e06f59f73c3 100644
--- a/content/browser/appcache/appcache_disk_cache.h
+++ b/content/browser/appcache/appcache_disk_cache.h
@@ -52,9 +52,6 @@
                 const net::CompletionCallback& callback) override;
   int DoomEntry(int64 key, const net::CompletionCallback& callback) override;
 
- protected:
-  explicit AppCacheDiskCache(bool use_simple_cache);
-
  private:
   class CreateBackendCallbackShim;
   class EntryImpl;
@@ -102,7 +99,6 @@
   void AddOpenEntry(EntryImpl* entry) { open_entries_.insert(entry); }
   void RemoveOpenEntry(EntryImpl* entry) { open_entries_.erase(entry); }
 
-  bool use_simple_cache_;
   bool is_disabled_;
   net::CompletionCallback init_callback_;
   scoped_refptr<CreateBackendCallbackShim> create_backend_callback_;