Add symbolic link support to FileSystemFileUtil::AbstractFileEnumerator.

webkit/fileapi/file_system_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_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/file_path.h"
 #include "base/file_util_proxy.h"
 #include "base/platform_file.h"
@@ skipping 20 matching lines @@
   class AbstractFileEnumerator {
    public:
     virtual ~AbstractFileEnumerator() {}
 
     // Returns an empty string if there are no more results.
     virtual FilePath Next() = 0;
 
     virtual int64 Size() = 0;
     virtual base::Time LastModifiedTime() = 0;
     virtual bool IsDirectory() = 0;
+    virtual bool IsLink() = 0;
   };
 
   class EmptyFileEnumerator : public AbstractFileEnumerator {
     virtual FilePath Next() OVERRIDE { return FilePath(); }
     virtual int64 Size() OVERRIDE { return 0; }
     virtual base::Time LastModifiedTime() OVERRIDE { return base::Time(); }
     virtual bool IsDirectory() OVERRIDE { return false; }
+    virtual bool IsLink() OVERRIDE { return false; }
   };
 
   virtual ~FileSystemFileUtil();
 
   // Creates or opens a file with the given flags.
   // If PLATFORM_FILE_CREATE is set in |file_flags| it always tries to create
   // a new file at the given |path| and calls back with
   // PLATFORM_FILE_ERROR_FILE_EXISTS if the |path| already exists.
   virtual PlatformFileError CreateOrOpen(
       FileSystemOperationContext* context,
@@ skipping 129 matching lines @@
 
  private:
   scoped_ptr<FileSystemFileUtil> underlying_file_util_;
 
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_