Revert of [CacheStorage] Pad and bin opaque resource sizes.

content/browser/cache_storage/cache_storage_cache_observer.h

 // Copyright 2016 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_CACHE_OBSERVER_H_
 #define CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_CACHE_OBSERVER_H_
 
 #include "content/common/content_export.h"
 
 namespace content {
 
 class CacheStorageCache;
 
 class CONTENT_EXPORT CacheStorageCacheObserver {
  public:
   // The cache size has been set.
-  virtual void CacheSizeUpdated(const CacheStorageCache* cache) = 0;
+  virtual void CacheSizeUpdated(const CacheStorageCache* cache,
+                                int64_t size) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_CACHE_OBSERVER_H_