[Profiles] Delete test-only method from the ProfileInfoCache

chrome/browser/profiles/profile_info_cache.h

Index: chrome/browser/profiles/profile_info_cache.h
diff --git a/chrome/browser/profiles/profile_info_cache.h b/chrome/browser/profiles/profile_info_cache.h
index 95db92c438fa54767df3137bafc1b73fd664757e..1fe893723ef17339b01902ebfc8d5db1a8ade0c5 100644
--- a/chrome/browser/profiles/profile_info_cache.h
+++ b/chrome/browser/profiles/profile_info_cache.h
@@ -129,12 +129,6 @@ class ProfileInfoCache : public ProfileInfoInterface,
 
   const base::FilePath& GetUserDataDir() const;
 
-  // Gets all names of profiles associated with this instance of Chrome.
-  // Because this method will be called during uninstall, before the creation
-  // of the ProfileManager, it reads directly from the local state preferences,
-  // rather than going through the ProfileInfoCache object.
-  static std::vector<base::string16> GetProfileNames();
-
   // Register cache related preferences in Local State.
   static void RegisterPrefs(PrefRegistrySimple* registry);