Create blobs from Disk Cache entries.

storage/browser/blob/blob_url_request_job.h

 // Copyright (c) 2012 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_URL_REQUEST_JOB_H_
 #define STORAGE_BROWSER_BLOB_BLOB_URL_REQUEST_JOB_H_
 
 #include <map>
+#include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "net/http/http_byte_range.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_request_job.h"
 #include "storage/browser/blob/blob_data_snapshot.h"
 #include "storage/browser/storage_browser_export.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
-namespace storage {
-class FileSystemContext;
-}
-
 namespace net {
 class DrainableIOBuffer;
 class IOBuffer;
 }
 
 namespace storage {
 
 class FileStreamReader;
+class FileSystemContext;
 
 // A request job that handles reading blob URLs.
 class STORAGE_EXPORT BlobURLRequestJob
     : public net::URLRequestJob {
  public:
   BlobURLRequestJob(net::URLRequest* request,
                     net::NetworkDelegate* network_delegate,
                     scoped_ptr<BlobDataSnapshot> blob_data,
                     storage::FileSystemContext* file_system_context,
                     base::SingleThreadTaskRunner* resolving_thread_task_runner);
@@ skipping 20 matching lines @@
   void DidCountSize(int error);
   void DidGetFileItemLength(size_t index, int64 result);
   void Seek(int64 offset);
 
   // For reading the blob.
   bool ReadLoop(int* bytes_read);
   bool ReadItem();
   void AdvanceItem();
   void AdvanceBytesRead(int result);
   bool ReadBytesItem(const BlobDataItem& item, int bytes_to_read);
+
   bool ReadFileItem(FileStreamReader* reader, int bytes_to_read);
-
   void DidReadFile(int chunk_number, int result);
   void DeleteCurrentFileReader();
 
+  bool ReadDiskCacheEntryItem(const BlobDataItem& item, int bytes_to_read);
+  void DidReadDiskCacheEntry(int result);
+
   int ComputeBytesToRead() const;
   int BytesReadCompleted();
 
   // These methods convert the result of blob data reading into response headers
   // and pass it to URLRequestJob's NotifyDone() or NotifyHeadersComplete().
   void NotifySuccess();
   void NotifyFailure(int);
   void HeadersCompleted(net::HttpStatusCode status_code);
 
   // Returns a FileStreamReader for a blob item at |index|.
@@ skipping 32 matching lines @@
   scoped_ptr<net::HttpResponseInfo> response_info_;
 
   base::WeakPtrFactory<BlobURLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobURLRequestJob);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_BLOB_BLOB_URL_REQUEST_JOB_H_