Adds browser preferences to configure first-run flow on Windows 8.

chrome/browser/ui/browser_ui_prefs.cc

Index: chrome/browser/ui/browser_ui_prefs.cc
diff --git a/chrome/browser/ui/browser_ui_prefs.cc b/chrome/browser/ui/browser_ui_prefs.cc
index 502bb18615b00828c675be78493155811024838f..79028e9a64c88faf93af0a0bc8584e9c987e3cd9 100644
--- a/chrome/browser/ui/browser_ui_prefs.cc
+++ b/chrome/browser/ui/browser_ui_prefs.cc
@@ -89,9 +89,13 @@ void RegisterBrowserUserPrefs(PrefService* prefs) {
   prefs->RegisterBooleanPref(prefs::kCheckDefaultBrowser,
                              true,
                              PrefService::UNSYNCABLE_PREF);
-  prefs->RegisterBooleanPref(prefs::kDefaultBrowserFlowDialog,
-                             true,
+#if defined(OS_WIN)
+  // As with Mac-spacific code above, it should be in a platform-specific
+  // section somewhere, but there is no good place for it.
+  prefs->RegisterBooleanPref(prefs::kSuppressSwitchToMetroModeOnSetDefault,
+                             false,
                              PrefService::UNSYNCABLE_PREF);
+#endif
   prefs->RegisterBooleanPref(prefs::kShowOmniboxSearchHint,
                              true,
                              PrefService::UNSYNCABLE_PREF);