Adding FileUtil::CreateSnapshotFile

webkit/fileapi/obfuscated_file_util.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_OBFUSCATED_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_OBFUSCATED_FILE_UTIL_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/file_util_proxy.h"
 #include "base/platform_file.h"
 #include "base/timer.h"
+#include "webkit/blob/shareable_file_reference.h"
 #include "webkit/fileapi/file_system_directory_database.h"
 #include "webkit/fileapi/file_system_file_util.h"
 #include "webkit/fileapi/file_system_origin_database.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/fileapi_export.h"
 
 namespace base {
 struct PlatformFileInfo;
 class Time;
@@ skipping 24 matching lines @@
     // Returns the next origin.  Returns empty if there are no more origins.
     virtual GURL Next() = 0;
 
     // Returns the current origin's information.
     virtual bool HasFileSystemType(FileSystemType type) const = 0;
   };
 
   explicit ObfuscatedFileUtil(const FilePath& file_system_directory);
   virtual ~ObfuscatedFileUtil();
 
+  // FileSystemFileUtil overrides.
   virtual base::PlatformFileError CreateOrOpen(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       int file_flags,
       base::PlatformFile* file_handle,
       bool* created) OVERRIDE;
-
   virtual PlatformFileError Close(
       FileSystemOperationContext* context,
       PlatformFile file) OVERRIDE;
-
   virtual base::PlatformFileError EnsureFileExists(
       FileSystemOperationContext* context,
       const FileSystemURL& url, bool* created) OVERRIDE;
-
   virtual base::PlatformFileError CreateDirectory(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       bool exclusive,
       bool recursive) OVERRIDE;
-
   virtual base::PlatformFileError GetFileInfo(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       base::PlatformFileInfo* file_info,
       FilePath* platform_file) OVERRIDE;
-
   virtual AbstractFileEnumerator* CreateFileEnumerator(
       FileSystemOperationContext* context,
       const FileSystemURL& root_url,
       bool recursive) OVERRIDE;
-
   virtual base::PlatformFileError GetLocalFilePath(
       FileSystemOperationContext* context,
       const FileSystemURL& file_system_url,
       FilePath* local_path) OVERRIDE;
-
   virtual base::PlatformFileError Touch(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       const base::Time& last_access_time,
       const base::Time& last_modified_time) OVERRIDE;
-
   virtual base::PlatformFileError Truncate(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       int64 length) OVERRIDE;
-
   virtual bool PathExists(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
-
   virtual bool DirectoryExists(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
-
   virtual bool IsDirectoryEmpty(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
-
   virtual base::PlatformFileError CopyOrMoveFile(
       FileSystemOperationContext* context,
       const FileSystemURL& src_url,
       const FileSystemURL& dest_url,
       bool copy) OVERRIDE;
-
   virtual PlatformFileError CopyInForeignFile(
         FileSystemOperationContext* context,
         const FilePath& src_file_path,
         const FileSystemURL& dest_url) OVERRIDE;
-
   virtual base::PlatformFileError DeleteFile(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
-
   virtual base::PlatformFileError DeleteSingleDirectory(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
+  virtual scoped_refptr<webkit_blob::ShareableFileReference>
+      CreateSnapshotFile(FileSystemOperationContext* context,
+                         const FileSystemURL& url,
+                         base::PlatformFileError* result,
+                         base::PlatformFileInfo* file_info,
+                         FilePath* platform_path) OVERRIDE;
 
   // Gets the topmost directory specific to this origin and type.  This will
   // contain both the directory database's files and all the backing file
   // subdirectories.
   // Returns an empty path if the directory is undefined (e.g. because |type|
   // is invalid). If the directory is defined, it will be returned, even if
   // there is a file system error (e.g. the directory doesn't exist on disk and
   // |create| is false). Callers should always check |error_code| to make sure
   // the returned path is usable.
   FilePath GetDirectoryForOriginAndType(
@@ skipping 116 matching lines @@
   scoped_ptr<FileSystemOriginDatabase> origin_database_;
   FilePath file_system_directory_;
   base::OneShotTimer<ObfuscatedFileUtil> timer_;
 
   DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_OBFUSCATED_FILE_UTIL_H_