[Blob] Blob paging to disk patch.

storage/browser/blob/blob_data_builder.h

 // Copyright (c) 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 STORAGE_BROWSER_BLOB_BLOB_DATA_BUILDER_H_
 #define STORAGE_BROWSER_BLOB_BLOB_DATA_BUILDER_H_
 
 #include <stdint.h>
 #include <ostream>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "storage/browser/blob/blob_data_item.h"
 #include "storage/browser/blob/blob_data_snapshot.h"
+#include "storage/browser/blob/shareable_file_reference.h"
 #include "storage/browser/storage_browser_export.h"
 
+namespace base {
+class TaskRunner;
+}
+
 namespace disk_cache {
 class Entry;
 }
 
 namespace storage {
 class BlobStorageContext;
 class ShareableFileReference;
 
 class STORAGE_EXPORT BlobDataBuilder {
  public:
@@ skipping 56 matching lines @@
       const base::Time& expected_modification_time);
 
   // You must know the length of the file, you cannot use kuint64max to specify
   // the whole file.  This method creates a ShareableFileReference to the given
   // file, which is stored in this builder.
   void AppendFile(const base::FilePath& file_path,
                   uint64_t offset,
                   uint64_t length,
                   const base::Time& expected_modification_time);
 
+  // You must know the length of the file, you cannot use kuint64max to specify
+  // the whole file.
+  void AppendShareableFileReference(
+      const scoped_refptr<ShareableFileReference> file,
+      uint64_t offset,
+      uint64_t length,
+      const base::Time& expected_modification_time);
+
   void AppendBlob(const std::string& uuid, uint64_t offset, uint64_t length);
 
   void AppendBlob(const std::string& uuid);
 
   void AppendFileSystemFile(const GURL& url,
                             uint64_t offset,
                             uint64_t length,
                             const base::Time& expected_modification_time);
 
   void AppendDiskCacheEntry(const scoped_refptr<DataHandle>& data_handle,
@@ skipping 63 matching lines @@
 }
 
 inline bool operator!=(const BlobDataBuilder& a, const BlobDataBuilder& b) {
   return !(a == b);
 }
 
 #endif  // defined(UNIT_TEST)
 
 }  // namespace storage
 #endif  // STORAGE_BROWSER_BLOB_BLOB_DATA_BUILDER_H_