Add virtualKeyboardPrivate.onKeyboardClosed API.

ash/common/wm/system_modal_container_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/wm/system_modal_container_layout_manager.h"
 
 #include <cmath>
 
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 26 matching lines @@
 }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // SystemModalContainerLayoutManager, public:
 
 SystemModalContainerLayoutManager::SystemModalContainerLayoutManager(
     WmWindow* container)
     : container_(container) {}
 
-SystemModalContainerLayoutManager::~SystemModalContainerLayoutManager() {}
+SystemModalContainerLayoutManager::~SystemModalContainerLayoutManager() {
+  if (keyboard::KeyboardController::GetInstance())
+    keyboard::KeyboardController::GetInstance()->RemoveObserver(this);
+}
 
 ////////////////////////////////////////////////////////////////////////////////
 // SystemModalContainerLayoutManager, WmLayoutManager implementation:
 
 void SystemModalContainerLayoutManager::OnWindowResized() {
   PositionDialogsAfterWorkAreaResize();
 }
 
 void SystemModalContainerLayoutManager::OnWindowAddedToLayout(WmWindow* child) {
   DCHECK(child->GetType() == ui::wm::WINDOW_TYPE_NORMAL ||
@@ skipping 65 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // SystemModalContainerLayoutManager, Keyboard::KeybaordControllerObserver
 // implementation:
 
 void SystemModalContainerLayoutManager::OnKeyboardBoundsChanging(
     const gfx::Rect& new_bounds) {
   PositionDialogsAfterWorkAreaResize();
 }
 
+void SystemModalContainerLayoutManager::OnKeyboardClosed() {}
+
 bool SystemModalContainerLayoutManager::IsPartOfActiveModalWindow(
     WmWindow* window) {
   return modal_window() &&
          (modal_window()->Contains(window) ||
           HasTransientAncestor(window->GetToplevelWindowForFocus(),
                                modal_window()));
 }
 
 bool SystemModalContainerLayoutManager::ActivateNextModalWindow() {
   if (modal_windows_.empty())
@@ skipping 115 matching lines @@
 bool SystemModalContainerLayoutManager::IsBoundsCentered(
     const gfx::Rect& bounds) const {
   gfx::Point window_center = bounds.CenterPoint();
   gfx::Point container_center = GetUsableDialogArea().CenterPoint();
   return std::abs(window_center.x() - container_center.x()) <
              kCenterPixelDelta &&
          std::abs(window_center.y() - container_center.y()) < kCenterPixelDelta;
 }
 
 }  // namespace ash