Changes for browser-side implementation for file api....

base/platform_file.h

 // Copyright (c) 2006-2008 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 BASE_PLATFORM_FILE_H_
 #define BASE_PLATFORM_FILE_H_
 #pragma once
 
 #include "build/build_config.h"
 #if defined(OS_WIN)
@@ skipping 32 matching lines @@
 
 enum PlatformFileError {
   PLATFORM_FILE_OK = 0,
   PLATFORM_FILE_ERROR_FAILED = -1,
   PLATFORM_FILE_ERROR_IN_USE = -2,
   PLATFORM_FILE_ERROR_EXISTS = -3,
   PLATFORM_FILE_ERROR_NOT_FOUND = -4,
   PLATFORM_FILE_ERROR_ACCESS_DENIED = -5,
   PLATFORM_FILE_ERROR_TOO_MANY_OPENED = -6,
   PLATFORM_FILE_ERROR_NO_MEMORY = -7,
-  PLATFORM_FILE_ERROR_NO_SPACE = -7,
-  PLATFORM_FILE_ERROR_NOT_A_DIRECTORY = -9
+  PLATFORM_FILE_ERROR_NO_SPACE = -8,
+  PLATFORM_FILE_ERROR_NOT_A_DIRECTORY = -9,
+  PLATFORM_FILE_ERROR_INVALID_OPERATION = -10
 };
 
 // Creates or opens the given file. If PLATFORM_FILE_OPEN_ALWAYS is used, and
 // |created| is provided, |created| will be set to true if the file was created
 // or to false in case the file was just opened. |error_code| can be NULL.
 PlatformFile CreatePlatformFile(const FilePath& name,
                                 int flags,
                                 bool* created,
                                 PlatformFileError* error_code);
 // Deprecated.
@@ skipping 38 matching lines @@
     return temp;
   }
 
  private:
   PlatformFile* value_;
 };
 
 }  // namespace base
 
 #endif  // BASE_PLATFORM_FILE_H_