[Retry] PPAPI: Add new PPB_FileRef.MakeDirectory to support exclusive operation

native_client_sdk/src/examples/api/file_io/file_io.cc

 // 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.
 
 /// @file file_io.cc
 /// This example demonstrates the use of persistent file I/O
 
 #define __STDC_LIMIT_MACROS
 #include <sstream>
 #include <string>
@@ skipping 294 matching lines @@
     ShowStatusMessage("List success");
   }
 
   void MakeDir(int32_t /* result */, const std::string& dir_name) {
     if (!file_system_ready_) {
       ShowErrorMessage("File system is not open", PP_ERROR_FAILED);
       return;
     }
     pp::FileRef ref(file_system_, dir_name.c_str());
 
-    int32_t result = ref.MakeDirectory(pp::BlockUntilComplete());
+    int32_t result = ref.MakeDirectory(
+        PP_MAKEDIRECTORYFLAG_NONE, pp::BlockUntilComplete());
     if (result != PP_OK) {
       ShowErrorMessage("Make directory failed", result);
       return;
     }
     ShowStatusMessage("Make directory success");
   }
 
   /// Encapsulates our simple javascript communication protocol
   void ShowErrorMessage(const std::string& message, int32_t result) {
     std::stringstream ss;
@@ skipping 26 matching lines @@
 };
 
 namespace pp {
 /// Factory function called by the browser when the module is first loaded.
 /// The browser keeps a singleton of this module.  It calls the
 /// CreateInstance() method on the object you return to make instances.  There
 /// is one instance per <embed> tag on the page.  This is the main binding
 /// point for your NaCl module with the browser.
 Module* CreateModule() { return new FileIoModule(); }
 }  // namespace pp