Remove PrefService parameter from chrome::RegisterPrefs.

chrome/test/base/scoped_testing_local_state.cc

Index: chrome/test/base/scoped_testing_local_state.cc
diff --git a/chrome/test/base/scoped_testing_local_state.cc b/chrome/test/base/scoped_testing_local_state.cc
index 2e5f904f439348c5fc319f06b7acd5e4cee5c703..e2915e5589863b05da2eb18cf09fe01675b1dead 100644
--- a/chrome/test/base/scoped_testing_local_state.cc
+++ b/chrome/test/base/scoped_testing_local_state.cc
@@ -11,7 +11,7 @@
 ScopedTestingLocalState::ScopedTestingLocalState(
     TestingBrowserProcess* browser_process)
     : browser_process_(browser_process) {
-  chrome::RegisterLocalState(&local_state_, local_state_.registry());
+  chrome::RegisterLocalState(local_state_.registry());
   EXPECT_FALSE(browser_process->local_state());
   browser_process->SetLocalState(&local_state_);
 }