From c313083a884ea1399b8520b7c599dced4b583d56 Mon Sep 17 00:00:00 2001
From: Parker Lougheed <parlough@gmail.com>
Date: Mon, 22 May 2023 19:10:11 -0500
Subject: [PATCH] Remove null-safety argument from DartPad doc samples
 (#127345)

Removes the `null_safety=true` query parameter from DartPad samples in the API docs, since all DartPad channels only support null safety now and the parameter does nothing.

## Test

Removing code, but updates the check in the dartdoc tool for the removal.
---
 dev/snippets/config/skeletons/dartpad-sample.html | 2 +-
 dev/tools/dartdoc.dart                            | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/dev/snippets/config/skeletons/dartpad-sample.html b/dev/snippets/config/skeletons/dartpad-sample.html
index 6913021cd8..9afc6233d9 100644
--- a/dev/snippets/config/skeletons/dartpad-sample.html
+++ b/dev/snippets/config/skeletons/dartpad-sample.html
@@ -13,7 +13,7 @@
         </p>
     </div>
     <iframe class="snippet-dartpad"
-        src="https://dartpad.dev/embed-flutter.html?split=60&amp;run=true&amp;null_safety=true&amp;sample_id={{id}}&amp;sample_channel={{channel}}&amp;channel={{channel}}">
+        src="https://dartpad.dev/embed-flutter.html?split=60&amp;run=true&amp;sample_id={{id}}&amp;sample_channel={{channel}}&amp;channel={{channel}}">
     </iframe>
 </div>
 {@end-inject-html}
\ No newline at end of file
diff --git a/dev/tools/dartdoc.dart b/dev/tools/dartdoc.dart
index 8bf6c484ea..b60c96133c 100644
--- a/dev/tools/dartdoc.dart
+++ b/dev/tools/dartdoc.dart
@@ -444,7 +444,6 @@ void sanityCheckDocs([Platform platform = const LocalPlatform()]) {
   final List<String> argumentRegExps = <String>[
     r'split=\d+',
     r'run=true',
-    r'null_safety=true',
     r'sample_id=widgets\.Listener\.\d+',
     'sample_channel=$expectedBranch',
     'channel=$expectedBranch',