Remove PlatforFile from fileapi/native_file_util

base/files/file.h

Index: base/files/file.h
diff --git a/base/files/file.h b/base/files/file.h
index 9c2479d03ef436f2a29409dd72be79801b0f7541..9358cc00d680d800dc1f5c7b129fcd818a570929 100644
--- a/base/files/file.h
+++ b/base/files/file.h
@@ -149,6 +149,9 @@ class BASE_EXPORT File {
   // Takes ownership of |platform_file|.
   explicit File(PlatformFile platform_file);
 
+  // Creates an object with a specific error_details code.
+  explicit File(Error error_details);
+
   // Move constructor for C++03 move emulation of this type.
   File(RValue other);