********** Chromium Blob hacking

webkit/fileapi/local_file_system_operation.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 WEBKIT_FILEAPI_LOCAL_FILE_SYSTEM_OPERATION_H_
 #define WEBKIT_FILEAPI_LOCAL_FILE_SYSTEM_OPERATION_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "webkit/fileapi/file_system_file_util.h"
 #include "webkit/fileapi/file_system_operation.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/file_writer_delegate.h"
 #include "webkit/quota/quota_types.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace chromeos {
 class CrosMountPointProvider;
 }
 
+namespace webkit_blob {
+class BlobDataHandle;
+}
+
 namespace fileapi {
 
 class FileSystemContext;
 
 // FileSystemOperation implementation for local file systems.
 class WEBKIT_STORAGE_EXPORT LocalFileSystemOperation
     : public NON_EXPORTED_BASE(FileSystemOperation) {
  public:
   virtual ~LocalFileSystemOperation();
 
@@ skipping 16 matching lines @@
   virtual void FileExists(const FileSystemURL& url,
                           const StatusCallback& callback) OVERRIDE;
   virtual void GetMetadata(const FileSystemURL& url,
                            const GetMetadataCallback& callback) OVERRIDE;
   virtual void ReadDirectory(const FileSystemURL& url,
                              const ReadDirectoryCallback& callback) OVERRIDE;
   virtual void Remove(const FileSystemURL& url, bool recursive,
                       const StatusCallback& callback) OVERRIDE;
   virtual void Write(const net::URLRequestContext* url_request_context,
                      const FileSystemURL& url,
-                     const GURL& blob_url,
+                     scoped_ptr<webkit_blob::BlobDataHandle> blob_handle,
                      int64 offset,
                      const WriteCallback& callback) OVERRIDE;
   virtual void Truncate(const FileSystemURL& url, int64 length,
                         const StatusCallback& callback) OVERRIDE;
   virtual void TouchFile(const FileSystemURL& url,
                          const base::Time& last_access_time,
                          const base::Time& last_modified_time,
                          const StatusCallback& callback) OVERRIDE;
   virtual void OpenFile(const FileSystemURL& url,
                         int file_flags,
@@ skipping 73 matching lines @@
   void DidGetUsageAndQuotaAndRunTask(
       const base::Closure& task,
       const base::Closure& error_callback,
       quota::QuotaStatusCode status,
       int64 usage, int64 quota);
 
   // returns a closure which actually perform the write operation.
   base::Closure GetWriteClosure(
       const net::URLRequestContext* url_request_context,
       const FileSystemURL& url,
-      const GURL& blob_url,
+      scoped_ptr<webkit_blob::BlobDataHandle> blob_handle,
       int64 offset,
       const WriteCallback& callback);
   void DidFailWrite(
       const WriteCallback& callback,
       base::PlatformFileError result);
 
   // The 'body' methods that perform the actual work (i.e. posting the
   // file task on proxy_) after the quota check.
   void DoCreateFile(const FileSystemURL& url,
                     const StatusCallback& callback, bool exclusive);
@@ skipping 108 matching lines @@
   // LocalFileSystemOperation instance is usually deleted upon completion but
   // could be deleted while it has inflight callbacks when Cancel is called.
   base::WeakPtrFactory<LocalFileSystemOperation> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileSystemOperation);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_LOCAL_FILE_SYSTEM_OPERATION_H_