Add enableReferrers and enableHyperlinkAuditing to contentSettings.misc API.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 2289b9387ffe94fff13b3b51d994d87db7ee8e86..bb0fbb443b4aeaca1ae60fbd5fb6245bd6b29fc9 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -2088,9 +2088,12 @@ void Browser::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterDictionaryPref(prefs::kBrowserWindowPlacement);
   prefs->RegisterDictionaryPref(prefs::kPreferencesWindowPlacement);
   // We need to register the type of these preferences in order to query
-  // them even though they're only typically controlled via policy.
+  // them even though they're typically only controlled via policy or command
+  // line switches.
   prefs->RegisterBooleanPref(prefs::kDisable3DAPIs, false);
   prefs->RegisterBooleanPref(prefs::kPluginsAllowOutdated, false);
+  prefs->RegisterBooleanPref(prefs::kEnableHyperlinkAuditing, true);
+  prefs->RegisterBooleanPref(prefs::kEnableReferrers, true);
 }
 
 // static