Remove the 2-level input method system & InputMethodBridge.

ui/views/controls/menu/submenu_view.cc

Index: ui/views/controls/menu/submenu_view.cc
diff --git a/ui/views/controls/menu/submenu_view.cc b/ui/views/controls/menu/submenu_view.cc
index b147aa6c958ef81d7cf5cb73c6fb78b9ee546031..ae5318adfe473da217fb8ff3713de7725ebb5b43 100644
--- a/ui/views/controls/menu/submenu_view.cc
+++ b/ui/views/controls/menu/submenu_view.cc
@@ -80,6 +80,10 @@ MenuItemView* SubmenuView::GetMenuItemAt(int index) {
   return NULL;
 }
 
+PrefixSelector* SubmenuView::GetPrefixSelector() {
+  return &prefix_selector_;
+}
+
 void SubmenuView::ChildPreferredSizeChanged(View* child) {
   if (!resize_open_menu_)
     return;
@@ -184,10 +188,6 @@ void SubmenuView::GetAccessibleState(ui::AXViewState* state) {
   state->role = ui::AX_ROLE_MENU_LIST_POPUP;
 }
 
-ui::TextInputClient* SubmenuView::GetTextInputClient() {
-  return &prefix_selector_;
-}
-
 void SubmenuView::PaintChildren(const ui::PaintContext& context) {
   View::PaintChildren(context);