Fix compile error : " error: open with O_CREAT in second argument needs 3 arg...

chrome/browser/chromeos/external_metrics_unittest.cc

 // Copyright (c) 2009 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.
 
 #include <errno.h>
 #include <sys/file.h>
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/chromeos/external_metrics.h"
@@ skipping 85 matching lines @@
   for (i = 0; i < MAXLENGTH + 99; i++) {
     b[i] = 'x';
   }
   b[i] = '\0';
   SendMessage(path, b, "yyy");
   external_metrics->CollectEvents();
   EXPECT_EQ(received_count, npairs);
 
   // Sends a malformed message (first string is not null-terminated).
   i = 100 + sizeof(i);
-  int fd = open(path, O_CREAT | O_WRONLY);
+  int fd = open(path, O_CREAT | O_WRONLY, 0666);
   EXPECT_GT(fd, 0);
   EXPECT_EQ(write(fd, &i, sizeof(i)), static_cast<int>(sizeof(i)));
   EXPECT_EQ(write(fd, b, i), i);
   EXPECT_EQ(close(fd), 0);
 
   external_metrics->CollectEvents();
   EXPECT_EQ(received_count, npairs);
 
   // Sends a malformed message (second string is not null-terminated).
   b[50] = '\0';
-  fd = open(path, O_CREAT | O_WRONLY);
+  fd = open(path, O_CREAT | O_WRONLY, 0666);
   EXPECT_GT(fd, 0);
   EXPECT_EQ(write(fd, &i, sizeof(i)), static_cast<int>(sizeof(i)));
   EXPECT_EQ(write(fd, b, i), i);
   EXPECT_EQ(close(fd), 0);
 
   external_metrics->CollectEvents();
   EXPECT_EQ(received_count, npairs);
 
   // Checks that we survive when file doesn't exist.
   EXPECT_EQ(unlink(path), 0);
   external_metrics->CollectEvents();
   EXPECT_EQ(received_count, npairs);
 }
 
 }  // namespace chromeos