[ServiceWorkerCache] Put should replace an existing entry to meet spec.

content/browser/service_worker/service_worker_cache.h

 // Copyright 2014 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_SERVICE_WORKER_SERVICE_WORKER_CACHE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CACHE_H_
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
@@ skipping 100 matching lines @@
       net::URLRequestContext* request_context,
       const scoped_refptr<storage::QuotaManagerProxy>& quota_manager_proxy,
       base::WeakPtr<storage::BlobStorageContext> blob_context);
 
   // Operations in progress will complete after the cache is deleted but pending
   // operations (those operations waiting for init to finish) won't.
   virtual ~ServiceWorkerCache();
 
   // Put callbacks.
   static void PutImpl(scoped_ptr<PutContext> put_context);
+  static void PutDidDelete(scoped_ptr<PutContext> put_context,
+                           ErrorType delete_error);
   static void PutDidCreateEntry(scoped_ptr<PutContext> put_context, int rv);
   static void PutDidWriteHeaders(scoped_ptr<PutContext> put_context,
                                  int expected_bytes,
                                  int rv);
   static void PutDidWriteBlobToCache(scoped_ptr<PutContext> put_context,
                                      scoped_ptr<BlobReader> blob_reader,
                                      disk_cache::ScopedEntryPtr entry,
                                      bool success);
 
   // Static callbacks for the Keys function.
@@ skipping 28 matching lines @@
   bool memory_only_;
 
   base::WeakPtrFactory<ServiceWorkerCache> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerCache);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CACHE_H_