Default enable the default web app migration on Chrome OS

This CL enables the default web app migration by default on Chrome OS.
The web app migration doesn't work properly in the Lacros environment
(go/web-app-migration-lacros) so we must ensure it is shipped before
Lacros starts its rollout.

Bug: 1058265
Change-Id: I373d74a8db7a72fcda6222733184a4a0886493e4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3210829
Reviewed-by: Eric Willigers <ericwilligers@chromium.org>
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Cr-Commit-Position: refs/heads/main@{#929087}

chrome/browser/web_applications/preinstalled_app_install_features.cc

@@ -35,14 +35,24 @@ bool IsMigrationFeature(const base::Feature& feature) {
 // Enables migration of default installed GSuite apps over to their replacement
 // web apps.
 const base::Feature kMigrateDefaultChromeAppToWebAppsGSuite{
-    "MigrateDefaultChromeAppToWebAppsGSuite",
-    base::FEATURE_DISABLED_BY_DEFAULT};
+  "MigrateDefaultChromeAppToWebAppsGSuite",
+#if defined(OS_CHROMEOS)
+      base::FEATURE_ENABLED_BY_DEFAULT
+#else
+      base::FEATURE_DISABLED_BY_DEFAULT
+#endif  // defined(OS_CHROMEOS)
+};
 
 // Enables migration of default installed non-GSuite apps over to their
 // replacement web apps.
 const base::Feature kMigrateDefaultChromeAppToWebAppsNonGSuite{
-    "MigrateDefaultChromeAppToWebAppsNonGSuite",
-    base::FEATURE_DISABLED_BY_DEFAULT};
+  "MigrateDefaultChromeAppToWebAppsNonGSuite",
+#if defined(OS_CHROMEOS)
+      base::FEATURE_ENABLED_BY_DEFAULT
+#else
+      base::FEATURE_DISABLED_BY_DEFAULT
+#endif  // defined(OS_CHROMEOS)
+};
 
 // Enables installing the PWA version of the chrome os calculator instead of the
 // deprecated chrome app.