chrome.settingsPrivate: Check whitelist for getPref / setPref

chrome/browser/extensions/api/settings_private/prefs_util.h

Index: chrome/browser/extensions/api/settings_private/prefs_util.h
diff --git a/chrome/browser/extensions/api/settings_private/prefs_util.h b/chrome/browser/extensions/api/settings_private/prefs_util.h
index a2f229e0862f53615a0d2b528c55bd518580e57f..8695af459ca5f5924a028ede7b51757690b0d905 100644
--- a/chrome/browser/extensions/api/settings_private/prefs_util.h
+++ b/chrome/browser/extensions/api/settings_private/prefs_util.h
@@ -42,6 +42,11 @@ class PrefsUtil {
   // manipulate.
   const TypedPrefMap& GetWhitelistedKeys();
 
+  // Returns the pref type for |pref_name| or PREF_TYPE_NONE if not in the
+  // whitelist.
+  api::settings_private::PrefType GetWhitelistedPrefType(
+      const std::string& pref_name);
+
   // Gets the value of the pref with the given |name|. Returns a pointer to an
   // empty PrefObject if no pref is found for |name|.
   virtual std::unique_ptr<api::settings_private::PrefObject> GetPref(