Create blobs from Disk Cache entries.

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 <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/storage_browser_export.h"
 
+namespace disk_cache {
+class Entry;
+}
+
 namespace storage {
 class BlobStorageContext;
 
 class STORAGE_EXPORT BlobDataBuilder {
  public:
+  using DataHandle = BlobDataItem::DataHandle;
+
   explicit BlobDataBuilder(const std::string& uuid);
   ~BlobDataBuilder();
 
   const std::string& uuid() const { return uuid_; }
 
   void AppendData(const std::string& data) {
     AppendData(data.c_str(), data.size());
   }
 
   void AppendData(const char* data, size_t length);
 
   // 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);
 
   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,
+                            disk_cache::Entry* disk_cache_entry,
+                            int disk_cache_stream_index);
+
   void set_content_type(const std::string& content_type) {
     content_type_ = content_type;
   }
 
   void set_content_disposition(const std::string& content_disposition) {
     content_disposition_ = content_disposition;
   }
 
  private:
   friend class BlobStorageContext;
@@ skipping 44 matching lines @@
   return !(a == b);
 }
 
 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_