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 8514f8f947f8644a007a30766eb1fdc0182c4e6d..f521bc38726027ea50531411bd361c4a3eb4450e 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -2094,9 +2094,12 @@ 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