Oobe: disable ChromeVox hint dialog

We noticed that the system will hang up when ChromeVox dialog is shown on the welcome screen during OOBE. Disable the feature first for further investigation.


Bug: 1161107, b/176129191
Change-Id: I5b14db099000fa217a062362b40070e24974e25a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2603754Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Yunke Zhou <yunkez@google.com>
Cr-Commit-Position: refs/heads/master@{#839578}

chromeos/constants/chromeos_features.cc

@@ -287,7 +287,7 @@ const base::Feature kEnableLocalSearchService{"EnableLocalSearchService",
 
 // Enables the OOBE ChromeVox hint dialog and announcement feature.
 const base::Feature kEnableOobeChromeVoxHint{"EnableOobeChromeVoxHint",
-                                             base::FEATURE_ENABLED_BY_DEFAULT};
+                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables Device End Of Lifetime warning notifications.
 const base::Feature kEolWarningNotifications{"EolWarningNotifications",