Create blobs from Disk Cache entries.

storage/browser/blob/blob_url_request_job.h

Index: storage/browser/blob/blob_url_request_job.h
diff --git a/storage/browser/blob/blob_url_request_job.h b/storage/browser/blob/blob_url_request_job.h
index a4e10eda1fdde6600c77b37607a8651158561580..74d07ada58df6fbd4194f6ffcba8ead490865e80 100644
--- a/storage/browser/blob/blob_url_request_job.h
+++ b/storage/browser/blob/blob_url_request_job.h
@@ -6,6 +6,7 @@
 #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"
@@ -19,10 +20,6 @@ namespace base {
 class SingleThreadTaskRunner;
 }
 
-namespace storage {
-class FileSystemContext;
-}
-
 namespace net {
 class DrainableIOBuffer;
 class IOBuffer;
@@ -31,6 +28,7 @@ class IOBuffer;
 namespace storage {
 
 class FileStreamReader;
+class FileSystemContext;
 
 // A request job that handles reading blob URLs.
 class STORAGE_EXPORT BlobURLRequestJob
@@ -71,11 +69,14 @@ class STORAGE_EXPORT BlobURLRequestJob
   void AdvanceItem();
   void AdvanceBytesRead(int result);
   bool ReadBytesItem(const BlobDataItem& item, int bytes_to_read);
-  bool ReadFileItem(FileStreamReader* reader, 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();