[AXTreeFixing] Add preference to enable AXTree Fixing

Change-Id: If9befee11f76e262974e5de5e95e637575039277
Bug: 399384017
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6330183
Reviewed-by: Mark Schillaci <[email protected]>
Reviewed-by: Nektarios Paisios <[email protected]>
Commit-Queue: Tzarial <[email protected]>
Reviewed-by: Kyle Horimoto <[email protected]>
Reviewed-by: Wes Okuhara <[email protected]>
Reviewed-by: Maksim Moskvitin <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1430914}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index c46a6d7..66c8471 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -2253,6 +2253,9 @@
   registry->RegisterTimePref(prefs::kLastMemorySaverChipExpandedTimestamp,
                              base::Time());
   registry->RegisterBooleanPref(
+      prefs::kAccessibilityAXTreeFixingEnabled, false,
+      user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
+  registry->RegisterBooleanPref(
       prefs::kAccessibilityMainNodeAnnotationsEnabled, false,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
 #endif