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

native_client_sdk/src/tests/nacl_io_test/event_test.cc

Index: native_client_sdk/src/tests/nacl_io_test/event_test.cc
diff --git a/native_client_sdk/src/tests/nacl_io_test/event_test.cc b/native_client_sdk/src/tests/nacl_io_test/event_test.cc
index b450f3c860a9473615052f2d0a0d1bf423bb8fba..8084df0732a7f45e2355ed9d645f29f09fae1871 100644
--- a/native_client_sdk/src/tests/nacl_io_test/event_test.cc
+++ b/native_client_sdk/src/tests/nacl_io_test/event_test.cc
@@ -273,8 +273,8 @@ TEST_F(SelectPollTest, PollMemPipe) {
   int fds[2];
 
   // Both FDs for regular files should be read/write but not exception.
-  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY);
-  fds[1] = kp->open("/test.txt", O_RDONLY);
+  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY, 0777);
+  fds[1] = kp->open("/test.txt", O_RDONLY, 0);
   ASSERT_GT(fds[0], -1);
   ASSERT_GT(fds[1], -1);
 
@@ -302,8 +302,8 @@ TEST_F(SelectPollTest, SelectMemPipe) {
   int fds[2];
 
   // Both FDs for regular files should be read/write but not exception.
-  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY);
-  fds[1] = kp->open("/test.txt", O_RDONLY);
+  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY, 0777);
+  fds[1] = kp->open("/test.txt", O_RDONLY, 0);
   ASSERT_GT(fds[0], -1);
   ASSERT_GT(fds[1], -1);
   SetFDs(fds, 2);
@@ -344,8 +344,8 @@ TEST_F(SelectPollTest, SelectPartialFdset) {
   int fds[2];
 
   // Both FDs for regular files should be read/write but not exception.
-  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY);
-  fds[1] = kp->open("/test.txt", O_RDONLY);
+  fds[0] = kp->open("/test.txt", O_CREAT | O_WRONLY, 0777);
+  fds[1] = kp->open("/test.txt", O_RDONLY, 0);
   ASSERT_GT(fds[0], -1);
   ASSERT_GT(fds[1], -1);
   ASSERT_LT(fds[1], 8);