Update from https://crrev.com/304715

base/files/file.cc

Index: base/files/file.cc
diff --git a/base/files/file.cc b/base/files/file.cc
index ea8dbf27ac1770d88fc6ce933a4bdd331820d2d9..a997074bec4003b2474287d33785d844a354addb 100644
--- a/base/files/file.cc
+++ b/base/files/file.cc
@@ -5,6 +5,10 @@
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 
+#if defined(OS_POSIX)
+#include "base/files/file_posix_hooks_internal.h"
+#endif
+
 namespace base {
 
 File::Info::Info()
@@ -38,6 +42,8 @@ File::File(PlatformFile platform_file)
       async_(false) {
 #if defined(OS_POSIX)
   DCHECK_GE(platform_file, -1);
+  if (IsValid())
+    ProtectFileDescriptor(platform_file);
 #endif
 }
 
@@ -52,6 +58,10 @@ File::File(RValue other)
       error_details_(other.object->error_details()),
       created_(other.object->created()),
       async_(other.object->async_) {
+#if defined(OS_POSIX)
+   if (IsValid())
+     ProtectFileDescriptor(GetPlatformFile());
+#endif
 }
 
 File::~File() {