Fix most remaining WebUI link errors on Android.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 3721bde3a1d9ba9148ce5ac0cbe6406766094280..3a885def626255770a7bcd688967700d5d27c714 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -112,7 +112,6 @@ void RegisterLocalState(PrefService* local_state) {
   AppsPromo::RegisterPrefs(local_state);
   browser_shutdown::RegisterPrefs(local_state);
   ExternalProtocolHandler::RegisterPrefs(local_state);
-  FlagsUI::RegisterPrefs(local_state);
   geolocation::RegisterPrefs(local_state);
   GoogleURLTracker::RegisterPrefs(local_state);
   IntranetRedirectDetector::RegisterPrefs(local_state);
@@ -146,6 +145,7 @@ void RegisterLocalState(PrefService* local_state) {
 #if !defined(OS_ANDROID)
   BackgroundModeManager::RegisterPrefs(local_state);
   Browser::RegisterPrefs(local_state);
+  FlagsUI::RegisterPrefs(local_state);

[battre, 2012/03/27 05:58:18]

I think if you disable registration of these prefs here, you should also disable
their use in about_flags.cc

[Yaron, 2012/03/27 16:07:31]

Ya, I guess it would crash when we tried to read it. I just added guards around
the code for retrieving/setting them because it seems like they're unmodifiable
if you can't access this ui.

Also, I haven't changed the test because I can't run it, so I'll have to come
back to it once we can link.

   NewTabPageHandler::RegisterPrefs(local_state);
   printing::PrintJobManager::RegisterPrefs(local_state);
   PromoResourceService::RegisterPrefs(local_state);