Bug 1139173 - ipc/chromium: Use <errno.h> instead of non-standard <sys/errno.h>. r=froydnj

ipc/chromium/src/base/file_util_posix.cc

@@ -14,7 +14,7 @@
 #include <libgen.h>
 #include <stdio.h>
 #include <string.h>
-#include <sys/errno.h>
+#include <errno.h>
 #include <sys/mman.h>
 #define _DARWIN_USE_64_BIT_INODE // Use 64-bit inode data structures
 #include <sys/stat.h>