PPAPI: Add new PPB_FileRef.MakeDirectory to support exclusive operation

ppapi/proxy/file_ref_resource.h

 // Copyright 2013 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 PPAPI_PROXY_PPB_FILE_REF_PROXY_H_
 #define PPAPI_PROXY_PPB_FILE_REF_PROXY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 24 matching lines @@
 
   // Resource implementation.
   virtual thunk::PPB_FileRef_API* AsPPB_FileRef_API() OVERRIDE;
 
   // PPB_FileRef_API implementation.
   virtual PP_FileSystemType GetFileSystemType() const OVERRIDE;
   virtual PP_Var GetName() const OVERRIDE;
   virtual PP_Var GetPath() const OVERRIDE;
   virtual PP_Resource GetParent() OVERRIDE;
   virtual int32_t MakeDirectory(
-     PP_Bool make_ancestors,
-     scoped_refptr<TrackedCallback> callback) OVERRIDE;
+      PP_Bool exclusive,
+      PP_Bool make_ancestors,
+      scoped_refptr<TrackedCallback> callback) OVERRIDE;
   virtual int32_t Touch(PP_Time last_access_time,
                         PP_Time last_modified_time,
                         scoped_refptr<TrackedCallback> callback) OVERRIDE;
   virtual int32_t Delete(scoped_refptr<TrackedCallback> callback) OVERRIDE;
   virtual int32_t Rename(PP_Resource new_file_ref,
                          scoped_refptr<TrackedCallback> callback) OVERRIDE;
   virtual int32_t Query(PP_FileInfo* info,
                         scoped_refptr<TrackedCallback> callback) OVERRIDE;
   virtual int32_t ReadDirectoryEntries(
       const PP_ArrayOutput& output,
@@ skipping 35 matching lines @@
   scoped_refptr<StringVar> path_var_;
   scoped_refptr<StringVar> absolute_path_var_;
 
   DISALLOW_COPY_AND_ASSIGN(FileRefResource);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_FILE_REF_PROXY_H_