[Nearby] Move a ns rewrite from settings to os-settings

This namespace rewrite got missed in the move of nearby_share_page to
be CrOS only.

Change-Id: I394bbed07d9515f6c63f0468201168250e397ef9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2380257
Auto-Submit: James Vecore <vecore@google.com>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: James Vecore <vecore@google.com>
Cr-Commit-Position: refs/heads/master@{#802340}

chrome/browser/resources/settings/chromeos/os_settings.gni

@@ -11,6 +11,7 @@ os_settings_namespace_rewrites = settings_namespace_rewrites +
                                  cr_components_chromeos_namespace_rewrites +
                                  cr_elements_chromeos_namespace_rewrites + [
                                    "// #polymer3 |",
+                                   "nearby_share.NearbyShareSettingsBehavior|NearbyShareSettingsBehavior",
                                    "parental_controls.ParentalControlsBrowserProxy|ParentalControlsBrowserProxy",
                                    "settings.AccountManagerBrowserProxy|AccountManagerBrowserProxy",
                                    "settings.AmbientModeBrowserProxy|AmbientModeBrowserProxy",

chrome/browser/resources/settings/settings.gni

@@ -116,8 +116,6 @@ settings_namespace_rewrites = [
   "settings.SystemPageBrowserProxy|SystemPageBrowserProxy",
   "settings.RouteObserverBehavior|RouteObserverBehavior",
   "settings.WebsiteUsageBrowserProxy|WebsiteUsageBrowserProxy",
-  "nearby_share.NearbyShareSettingsBehavior|NearbyShareSettingsBehavior",
-
   "action_link.m.js|action_link.js",
 
   # TODO(1026426): Add more entries above as needed.