Write out CacheStorageCache size to index file.

content/browser/cache_storage/cache_storage_dispatcher_host.h

 // Copyright 2015 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_CACHE_STORAGE_CACHE_STORAGE_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_DISPATCHER_HOST_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "content/browser/cache_storage/cache_storage.h"
+#include "content/browser/cache_storage/cache_storage_index.h"
 #include "content/public/browser/browser_message_filter.h"
 
 namespace url {
 class Origin;
 }
 
 namespace content {
 
 class CacheStorageContextImpl;
 
@@ skipping 76 matching lines @@
       int thread_id,
       int request_id,
       std::unique_ptr<CacheStorageCacheHandle> cache_handle,
       CacheStorageError error);
   void OnCacheStorageDeleteCallback(int thread_id,
                                     int request_id,
                                     bool deleted,
                                     CacheStorageError error);
   void OnCacheStorageKeysCallback(int thread_id,
                                   int request_id,
-                                  const std::vector<std::string>& strings);
+                                  const CacheStorageIndex& cache_index);
   void OnCacheStorageMatchCallback(
       int thread_id,
       int request_id,
       CacheStorageError error,
       std::unique_ptr<ServiceWorkerResponse> response,
       std::unique_ptr<storage::BlobDataHandle> blob_data_handle);
 
   // Cache callbacks.
   void OnCacheMatchCallback(
       int thread_id,
@@ skipping 50 matching lines @@
   UUIDToBlobDataHandleList blob_handle_store_;
 
   scoped_refptr<CacheStorageContextImpl> context_;
 
   DISALLOW_COPY_AND_ASSIGN(CacheStorageDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_DISPATCHER_HOST_H_