Oobe: Enable child specific signin feature

Bug: 1101318
Change-Id: I6776988895cde81963822c958cafa0d020f09404
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2362611Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799634}

chromeos/constants/chromeos_features.cc

@@ -97,7 +97,7 @@ const base::Feature kCdmFactoryDaemon{"CdmFactoryDaemon",
 
 // Enables or disables entry point for child account sign in or creation.
 const base::Feature kChildSpecificSignin{"ChildSpecificSignin",
-                                         base::FEATURE_DISABLED_BY_DEFAULT};
+                                         base::FEATURE_ENABLED_BY_DEFAULT};
 
 // If enabled, options page for each input method will be opened in ChromeOS
 // settings. Otherwise it will be opened in a new web page in Chrome browser.