Add action for each button on opt-in IME menu.

ash/common/shelf/shelf_layout_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <vector>
 
@@ skipping 401 matching lines @@
   // On login screen if keyboard has been just hidden, update bounds just once
   // but ignore target_bounds.work_area_insets since shelf overlaps with login
   // window.
   if (WmShell::Get()->GetSessionStateDelegate()->IsUserSessionBlocked() &&
       keyboard_is_about_to_hide) {
     WmWindow* window = WmLookup::Get()->GetWindowForWidget(shelf_widget_);
     WmShell::Get()->SetDisplayWorkAreaInsets(window, gfx::Insets());
   }
 }
 
+void ShelfLayoutManager::OnKeyboardHidden() {}
+
 bool ShelfLayoutManager::IsHorizontalAlignment() const {
   return ::ash::IsHorizontalAlignment(GetAlignment());
 }
 
 ShelfBackgroundType ShelfLayoutManager::GetShelfBackgroundType() const {
   if (state_.visibility_state != SHELF_AUTO_HIDE &&
       state_.window_state == wm::WORKSPACE_WINDOW_STATE_MAXIMIZED) {
     return SHELF_BACKGROUND_MAXIMIZED;
   }
 
@@ skipping 706 matching lines @@
   gesture_drag_status_ = GESTURE_DRAG_NONE;
 }
 
 int ShelfLayoutManager::GetShelfInsetsForAutoHide() const {
   if (invisible_auto_hide_shelf_)
     return 0;
   return GetShelfConstant(SHELF_INSETS_FOR_AUTO_HIDE);
 }
 
 }  // namespace ash