Remove dependency to file_system_operation_impl.h from chrome/

webkit/browser/fileapi/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_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/platform_file.h"
 #include "base/process/process.h"
+#include "webkit/browser/fileapi/file_system_operation_context.h"
+#include "webkit/browser/webkit_storage_browser_export.h"
 #include "webkit/common/fileapi/directory_entry.h"
 
 namespace base {
 class Time;
 }
 
 namespace net {
 class URLRequest;
 }
 
 namespace webkit_blob {
 class ShareableFileReference;
 }
 
 class GURL;
 
 namespace fileapi {
 
+class FileSystemContext;
 class FileSystemURL;
 class FileWriterDelegate;
-class FileSystemOperationImpl;
 
 // The interface class for FileSystemOperation implementations.
 //
 // This interface defines file system operations required to implement
 // "File API: Directories and System"
 // http://www.w3.org/TR/file-system-api/
 //
 // DESIGN NOTES
 //
 // This class is designed to
 //
 // 1) Serve one-time file system operation per instance.  Only one
 // method(CreateFile, CreateDirectory, Copy, Move, DirectoryExists,
 // GetMetadata, ReadDirectory and Remove) may be called during the
 // lifetime of this object and it should be called no more than once.
 //
 // 2) Deliver the results of operations to the client via the callback function
 // passed as the last parameter of the method.
 //
 // Note that it is valid to delete an operation while it is running.
 // The callback will NOT be fired if the operation is deleted before
 // it gets called.
 class FileSystemOperation {
  public:
+  WEBKIT_STORAGE_BROWSER_EXPORT static FileSystemOperation* Create(
+      const FileSystemURL& url,
+      FileSystemContext* file_system_context,
+      scoped_ptr<FileSystemOperationContext> operation_context);
+
   virtual ~FileSystemOperation() {}
 
   // Used for CreateFile(), etc. |result| is the return code of the operation.
   typedef base::Callback<void(base::PlatformFileError result)> StatusCallback;
 
   // Used for GetMetadata(). |result| is the return code of the operation,
   // |file_info| is the obtained file info.
   typedef base::Callback<
       void(base::PlatformFileError result,
            const base::PlatformFileInfo& file_info)> GetMetadataCallback;
@@ skipping 287 matching lines @@
     kOperationOpenFile,
     kOperationCloseFile,
     kOperationGetLocalPath,
     kOperationCancel,
   };
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_