NativeIO: Block filenames longer that 100 characters

This fixes a bug where maximum filename length would be
installation-path and host configuration dependent. The proposed limit
is enough for existing partner and test cases. Depending on developer
feedback we might provide a Javascript-based solution as shown in this
document:
https://docs.google.com/document/d/1gjnHg9b0vuTul54MHAzRFfQ6T1XKdayYoGKs6Td8yuQ/edit?ts=5fc7a3ee&pli=1

Bug: 914488
Change-Id: I0b21d2144aee69b6cb82338365a3d6d419e2ca04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2712793
Commit-Queue: Emanuel Krivoy <krivoy@google.com>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#857408}

native-io/resources/support.js

@@ -1,9 +1,10 @@
 // Names disallowed by NativeIO
 const kBadNativeIoNames = [
-  "Uppercase",
-  "has-dash",
-  "has.dot",
-  "has/slash",
+  'Uppercase',
+  'has-dash',
+  'has.dot',
+  'has/slash',
+  'x'.repeat(101),
 ];
 
 // Returns a handle to a newly created file that holds some data.