cros: Allow JS to control virtual keyboard on sign-in screen.

chrome/browser/chromeos/login/ui/login_display_host_impl.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_DISPLAY_HOST_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_DISPLAY_HOST_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
-#include "ash/shell_observer.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/app_launch_controller.h"
 #include "chrome/browser/chromeos/login/auth/auth_prewarmer.h"
 #include "chrome/browser/chromeos/login/existing_user_controller.h"
 #include "chrome/browser/chromeos/login/signin_screen_controller.h"
 #include "chrome/browser/chromeos/login/ui/login_display.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/dbus/session_manager_client.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "ui/display/display_observer.h"
 #include "ui/gfx/geometry/rect.h"
-#include "ui/keyboard/keyboard_controller_observer.h"
 #include "ui/views/widget/widget_removals_observer.h"
 #include "ui/wm/public/scoped_drag_drop_disabler.h"
 
 class AccountId;
 class ScopedKeepAlive;
 
 namespace chromeos {
 
 class ArcKioskController;
 class DemoAppLauncher;
 class FocusRingController;
 class WebUILoginDisplay;
 class WebUILoginView;
 
 // An implementation class for OOBE/login WebUI screen host.
 // It encapsulates controllers, wallpaper integration and flow.
 class LoginDisplayHostImpl : public LoginDisplayHost,
                              public content::NotificationObserver,
                              public content::WebContentsObserver,
                              public chromeos::SessionManagerClient::Observer,
                              public chromeos::CrasAudioHandler::AudioObserver,
-                             public ash::ShellObserver,
-                             public keyboard::KeyboardControllerObserver,
                              public display::DisplayObserver,
                              public views::WidgetRemovalsObserver,
                              public chrome::MultiUserWindowManager::Observer {
  public:
   explicit LoginDisplayHostImpl(const gfx::Rect& wallpaper_bounds);
   ~LoginDisplayHostImpl() override;
 
   // LoginDisplayHost implementation:
   LoginDisplay* CreateLoginDisplay(LoginDisplay::Delegate* delegate) override;
   gfx::NativeWindow GetNativeWindow() const override;
@@ skipping 47 matching lines @@
 
   // Overridden from content::WebContentsObserver:
   void RenderProcessGone(base::TerminationStatus status) override;
 
   // Overridden from chromeos::SessionManagerClient::Observer:
   void EmitLoginPromptVisibleCalled() override;
 
   // Overridden from chromeos::CrasAudioHandler::AudioObserver:
   void OnActiveOutputNodeChanged() override;
 
-  // ash::ShellObserver:
-  void OnVirtualKeyboardStateChanged(bool activated,
-                                     ash::WmWindow* root_window) override;
-
-  // Overridden from keyboard::KeyboardControllerObserver:
-  void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) override;
-  void OnKeyboardClosed() override;
-
   // Overridden from display::DisplayObserver:
   void OnDisplayAdded(const display::Display& new_display) override;
   void OnDisplayRemoved(const display::Display& old_display) override;
   void OnDisplayMetricsChanged(const display::Display& display,
                                uint32_t changed_metrics) override;
 
   // Overriden from views::WidgetRemovalsObserver:
   void OnWillRemoveView(views::Widget* widget, views::View* view) override;
 
   // Overriden from chrome::MultiUserWindowManager::Observer:
@@ skipping 167 matching lines @@
 
   // True when request to play startup sound was sent to
   // SoundsManager.
   bool startup_sound_played_ = false;
 
   // When true, startup sound should be played only when spoken
   // feedback is enabled.  Otherwise, startup sound should be played
   // in any case.
   bool startup_sound_honors_spoken_feedback_ = false;
 
-  // True is subscribed as keyboard controller observer.
-  bool is_observing_keyboard_ = false;
-
   // Keeps a copy of the old Drag'n'Drop client, so that it would be disabled
   // during a login session and restored afterwards.
   std::unique_ptr<aura::client::ScopedDragDropDisabler>
       scoped_drag_drop_disabler_;
 
   base::WeakPtrFactory<LoginDisplayHostImpl> pointer_factory_;
   base::WeakPtrFactory<LoginDisplayHostImpl> animation_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginDisplayHostImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_DISPLAY_HOST_IMPL_H_