Relax ScopedFD close() error checking

base/files/scoped_file.cc

Index: base/files/scoped_file.cc
diff --git a/base/files/scoped_file.cc b/base/files/scoped_file.cc
index 8ce45b8ba39e5a09ec835bdbc3fd72f735788f4b..78d4ca52634d5d0275edd2e710f203ef7f3c8592 100644
--- a/base/files/scoped_file.cc
+++ b/base/files/scoped_file.cc
@@ -37,6 +37,14 @@ void ScopedFDCloseTraits::Free(int fd) {
   int close_errno = errno;
   base::debug::Alias(&close_errno);
 
+#if defined(OS_LINUX)
+  // NB: Some file descriptors can return errors from close() e.g. network
+  // filesystems such as NFS and Linux input devices. On Linux, errors from
+  // close other than EBADF do not indicate failure to actually close the fd.
+  if (ret != 0 && errno != EBADF)
+    ret = 0;
+#endif
+
   PCHECK(0 == ret);
 }