Add CreateFileSystemOperation() method to FileSystemContext

webkit/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_FILEAPI_FILE_SYSTEM_OPERATION_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_OPERATION_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 25 matching lines @@
 namespace fileapi {
 
 class FileSystemCallbackDispatcher;
 class FileSystemContext;
 class FileWriterDelegate;
 class FileSystemOperationTest;
 
 // FileSystemOperation implementation for local file systems.
 class FileSystemOperation : public FileSystemOperationInterface {
  public:
-  FileSystemOperation(scoped_ptr<FileSystemCallbackDispatcher> dispatcher,
-                      scoped_refptr<base::MessageLoopProxy> proxy,
-                      FileSystemContext* file_system_context);
   virtual ~FileSystemOperation();
 
   // FileSystemOperation overrides.
   virtual void CreateFile(const GURL& path,
                           bool exclusive) OVERRIDE;
   virtual void CreateDirectory(const GURL& path,
                                bool exclusive,
                                bool recursive) OVERRIDE;
   virtual void Copy(const GURL& src_path,
                     const GURL& dest_path) OVERRIDE;
@@ skipping 11 matching lines @@
   virtual void Truncate(const GURL& path, int64 length) OVERRIDE;
   virtual void TouchFile(const GURL& path,
                          const base::Time& last_access_time,
                          const base::Time& last_modified_time) OVERRIDE;
   virtual void OpenFile(
       const GURL& path,
       int file_flags,
       base::ProcessHandle peer_handle) OVERRIDE;
   virtual void Cancel(
       scoped_ptr<FileSystemCallbackDispatcher> cancel_dispatcher) OVERRIDE;
+  virtual FileSystemOperation* AsFileSystemOperation() OVERRIDE;
 
   // Synchronously gets the platform path for the given |path|.
   void SyncGetPlatformPath(const GURL& path, FilePath* platform_path);
 
  private:
   class ScopedQuotaUtilHelper;
 
+  // Only MountPointProviders or testing class can create a
+  // new operation directly.
+  friend class SandboxMountPointProvider;
+  friend class CrosMountPointProvider;
+  friend class FileSystemTestHelper;
+
+  FileSystemOperation(scoped_ptr<FileSystemCallbackDispatcher> dispatcher,
+                      scoped_refptr<base::MessageLoopProxy> proxy,
+                      FileSystemContext* file_system_context);
+
   FileSystemContext* file_system_context() const {
     return operation_context_.file_system_context();
   }
 
   FileSystemOperationContext* file_system_operation_context() {
     return &operation_context_;
   }
 
   friend class FileSystemOperationTest;
   friend class FileSystemOperationWriteTest;
@@ skipping 171 matching lines @@
   // write.
   FilePath src_virtual_path_;
   FilePath dest_virtual_path_;
 
   DISALLOW_COPY_AND_ASSIGN(FileSystemOperation);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_OPERATION_H_