Use the layout for calculating IME inset.

We should calculate the offset for the entire layout rather than
just the scroll view. This allows us to not special case the navigation
bar inside SystemBarHelper.setImeInsetView, as the logic before always
assumed the scroll view was passed into setImeInsetView.

bug:27063940
Change-Id: If3f09e1e07ea584097a050b987c1ab3985b4991c

src/com/android/settings/SetupChooseLockPassword.java

@@ -102,7 +102,7 @@ public class SetupChooseLockPassword extends ChooseLockPassword {
         @Override
         public void onViewCreated(View view, Bundle savedInstanceState) {
             super.onViewCreated(view, savedInstanceState);
-            SystemBarHelper.setImeInsetView(mLayout.findViewById(R.id.suw_bottom_scroll_view));
+            SystemBarHelper.setImeInsetView(mLayout);
             SetupWizardUtils.setImmersiveMode(getActivity());
             mLayout.setHeaderText(getActivity().getTitle());
         }