Plumbing though mode parameter to open, since fusefs can make use of it.

native_client_sdk/src/tests/nacl_io_test/mock_kernel_proxy.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 TESTS_NACL_IO_TEST_MOCK_KERNEL_PROXY_H_
 #define TESTS_NACL_IO_TEST_MOCK_KERNEL_PROXY_H_
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include "gmock/gmock.h"
@@ skipping 30 matching lines @@
   MOCK_METHOD2(kill, int(int, int));
   MOCK_METHOD3(lchown, int(const char*, uid_t, gid_t));
   MOCK_METHOD2(link, int(const char*, const char*));
   MOCK_METHOD3(lseek, off_t(int, off_t, int));
   MOCK_METHOD2(lstat, int(const char*, struct stat*));
   MOCK_METHOD2(mkdir, int(const char*, mode_t));
   MOCK_METHOD6(mmap, void*(void*, size_t, int, int, int, size_t));
   MOCK_METHOD5(mount, int(const char*, const char*, const char*, unsigned long,
                           const void*));
   MOCK_METHOD2(munmap, int(void*, size_t));
-  MOCK_METHOD2(open, int(const char*, int));
+  MOCK_METHOD3(open, int(const char*, int, mode_t));
   MOCK_METHOD1(pipe, int(int[2]));
   MOCK_METHOD3(read, ssize_t(int, void*, size_t));
   MOCK_METHOD3(readlink, int(const char*, char*, size_t count));
   MOCK_METHOD1(remove, int(const char*));
   MOCK_METHOD2(rename, int(const char*, const char*));
   MOCK_METHOD1(rmdir, int(const char*));
   MOCK_METHOD3(sigaction, int(int, const struct sigaction*, struct sigaction*));
   MOCK_METHOD2(stat, int(const char*, struct stat*));
   MOCK_METHOD2(symlink, int(const char*, const char*));
   MOCK_METHOD2(tcflush, int(int, int));
@@ skipping 29 matching lines @@
                                const struct sockaddr*, socklen_t));
   MOCK_METHOD3(sendmsg, ssize_t(int, const struct msghdr*, int));
   MOCK_METHOD5(setsockopt, int(int, int, int, const void*, socklen_t));
   MOCK_METHOD2(shutdown, int(int, int));
   MOCK_METHOD3(socket, int(int, int, int));
   MOCK_METHOD4(socketpair, int(int, int, int, int*));
 #endif // PROVIDES_SOCKET_API
 };
 
 #endif  // TESTS_NACL_IO_TEST_MOCK_KERNEL_PROXY_H_