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..e234b0a886a77c7a0bd8c287b62707b5150b8b24 100644
--- a/ui/views/controls/menu/submenu_view.cc
+++ b/ui/views/controls/menu/submenu_view.cc
@@ -8,6 +8,7 @@
 
 #include "base/compiler_specific.h"
 #include "ui/accessibility/ax_view_state.h"
+#include "ui/base/ime/input_method.h"
 #include "ui/compositor/paint_recorder.h"
 #include "ui/events/event.h"
 #include "ui/gfx/canvas.h"
@@ -57,6 +58,9 @@ SubmenuView::~SubmenuView() {
   // necessarily closed).
   Close();
 
+  if (GetInputMethod())
+    GetInputMethod()->DetachTextInputClient(GetPrefixSelector());
+
   delete scroll_view_container_;
 }
 
@@ -80,6 +84,10 @@ 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 +192,6 @@ 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);