fws: Make fws policy available to lacros

This CL exposes the floating workspace (fws) enabled policy to be
seen on the lacros side.

A followup CL will use this policy flag to tie some aspects of
Desk Profiles with fws to allow filtering of windows by profile.

Low-Coverage-Reason: TRIVIAL_CHANGE This is a renaming.

BUG=b:323015572
TEST=Manual Test and CQ Dryruns

Change-Id: I3e7afa27825f8b958989fb5bb3a15508cf74fc2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5263668
Reviewed-by: April Zhou <[email protected]>
Commit-Queue: Matthew Zhu <[email protected]>
Reviewed-by: Pavol Marko <[email protected]>
Reviewed-by: Lei Zhang <[email protected]>
Reviewed-by: Xiyuan Xia <[email protected]>
Reviewed-by: Cait Phillips <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1261318}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 7f72246..c305241f 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -1920,6 +1920,8 @@
   registry->RegisterListPref(
       chromeos::prefs::kKeepFullscreenWithoutNotificationUrlAllowList,
       PrefRegistry::PUBLIC);
+  registry->RegisterBooleanPref(policy::policy_prefs::kFloatingWorkspaceEnabled,
+                                false);
   ::reporting::RegisterProfilePrefs(registry);
 #if BUILDFLAG(USE_CUPS)
   extensions::PrintingAPIHandler::RegisterProfilePrefs(registry);