Non-SFI mode: Implement test launcher for nacl_helper_nonsfi_unittests

base/files/file_util_posix.cc

Index: base/files/file_util_posix.cc
diff --git a/base/files/file_util_posix.cc b/base/files/file_util_posix.cc
index b4a64ba9eeee8c0aee3d37cbb498eb0420961dbb..a8c5d44f9c753fdf0a29d8f5b7765d9b6d4e8f64 100644
--- a/base/files/file_util_posix.cc
+++ b/base/files/file_util_posix.cc
@@ -651,6 +651,7 @@ bool GetFileInfo(const FilePath& file_path, File::Info* results) {
   results->FromStat(file_info);
   return true;
 }
+#endif  // !defined(OS_NACL_NONSFI)
 
 FILE* OpenFile(const FilePath& filename, const char* mode) {
   ThreadRestrictions::AssertIOAllowed();
@@ -710,6 +711,8 @@ bool WriteFileDescriptor(const int fd, const char* data, int size) {
   return true;
 }
 
+#if !defined(OS_NACL_NONSFI)
+
 bool AppendToFile(const FilePath& filename, const char* data, int size) {
   ThreadRestrictions::AssertIOAllowed();
   bool ret = true;