Management WebUI: Put link to chrome://management behind a feature flag

When clicking on the 'Managed by your organization' message in the
settings page and menu, open chrome://management if the
"link-management-page" flag is set to true.

Bug: 938991
Change-Id: If2f14a3818a00fc4dd82c46d704d0452415c6aec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1506497
Reviewed-by: Elly Fong-Jones <[email protected]>
Reviewed-by: Robert Kaplow <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Commit-Queue: Yann Dago <[email protected]>
Cr-Commit-Position: refs/heads/master@{#638657}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 6c91bfa..127a959 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2764,6 +2764,12 @@
 const char kHappinessTrackingSurveysForDesktopDescription[] =
     "Enable showing Happiness Tracking Surveys to users on Desktop";
 
+const char kLinkManagedNoticeToChromeUIManagementURLName[] =
+    "Link managed notice to the management page";
+const char kLinkManagedNoticeToChromeUIManagementURLDescription[] =
+    "Makes the managed notice 'Managed by your organization' a link to "
+    "chrome://management";
+
 const char kOmniboxDriveSuggestionsName[] =
     "Omnibox Google Drive Document suggestions";
 const char kOmniboxDriveSuggestionsDescriptions[] =