[Storage] Blob Storage Refactoring pt 1

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"
 #include "base/memory/weak_ptr.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "net/base/completion_callback.h"
 #include "net/disk_cache/disk_cache.h"
 
 namespace net {
 class URLRequestContext;
 class IOBufferWithSize;
 }
 
 namespace storage {
-class BlobData;
-class BlobDataHandle;
+class BlobDataBuilder;
+class BlobDataSnapshotHandle;
 class BlobStorageContext;
 class QuotaManagerProxy;
 }
 
 namespace content {
 class ChromeBlobStorageContext;
 class ServiceWorkerCacheMetadata;
 class TestServiceWorkerCache;
 
 // Represents a ServiceWorker Cache as seen in
 // https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html.
 // Callbacks to the public functions will be called so long as the cache object
 // lives.
 class CONTENT_EXPORT ServiceWorkerCache
     : public base::RefCounted<ServiceWorkerCache> {
  public:
   enum ErrorType {
     ErrorTypeOK = 0,
     ErrorTypeExists,
     ErrorTypeStorage,
     ErrorTypeNotFound
   };
 
   enum EntryIndex { INDEX_HEADERS = 0, INDEX_RESPONSE_BODY };
   typedef base::Callback<void(ErrorType)> ErrorCallback;
   typedef base::Callback<void(ErrorType,
                               scoped_ptr<ServiceWorkerResponse>,
-                              scoped_ptr<storage::BlobDataHandle>)>
+                              scoped_ptr<storage::BlobDataSnapshotHandle>)>
       ResponseCallback;
   typedef std::vector<ServiceWorkerFetchRequest> Requests;
   typedef base::Callback<void(ErrorType, scoped_ptr<Requests>)>
       RequestsCallback;
 
   static scoped_refptr<ServiceWorkerCache> CreateMemoryCache(
       const GURL& origin,
       net::URLRequestContext* request_context,
       const scoped_refptr<storage::QuotaManagerProxy>& quota_manager_proxy,
       base::WeakPtr<storage::BlobStorageContext> blob_context);
@@ skipping 113 matching lines @@
   void InitBackend(const base::Closure& callback);
   void InitDone(ErrorType error);
 
   void IncPendingOps() { pending_ops_++; }
   void DecPendingOps();
   void PendingErrorCallback(const ErrorCallback& callback, ErrorType error);
   void PendingResponseCallback(
       const ResponseCallback& callback,
       ErrorType error,
       scoped_ptr<ServiceWorkerResponse> response,
-      scoped_ptr<storage::BlobDataHandle> blob_data_handle);
+      scoped_ptr<storage::BlobDataSnapshotHandle> blob_data_handle);
   void PendingRequestsCallback(const RequestsCallback& callback,
                                ErrorType error,
                                scoped_ptr<Requests> requests);
 
   // The backend can be deleted via the Close function at any time so always
   // check for its existence before use.
   scoped_ptr<disk_cache::Backend> backend_;
   GURL origin_;
   base::FilePath path_;
   net::URLRequestContext* request_context_;
@@ skipping 14 matching lines @@
   base::Closure ops_complete_callback_;
 
   base::WeakPtrFactory<ServiceWorkerCache> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerCache);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CACHE_H_