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

chrome/browser/chromeos/login/lock/webui_screen_locker.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_LOCK_WEBUI_SCREEN_LOCKER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOCK_WEBUI_SCREEN_LOCKER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
-#include "ash/shell_observer.h"
 #include "ash/wm/lock_state_observer.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/login/signin_screen_controller.h"
 #include "chrome/browser/chromeos/login/signin_specifics.h"
 #include "chrome/browser/chromeos/login/ui/lock_window.h"
 #include "chrome/browser/chromeos/login/ui/login_display.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
 #include "chromeos/dbus/power_manager_client.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "ui/display/display_observer.h"
-#include "ui/keyboard/keyboard_controller_observer.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace content {
 class WebUI;
 }
 
 namespace chromeos {
 
 class ScreenLocker;
 class WebUILoginDisplay;
 
 namespace login {
 class NetworkStateHelper;
 }
 
 namespace test {
 class WebUIScreenLockerTester;
 }
 
 // Displays a WebUI lock screen based on the Oobe account picker screen.
 class WebUIScreenLocker : public WebUILoginView,
                           public LoginDisplay::Delegate,
                           public ash::LockStateObserver,
                           public views::WidgetObserver,
                           public PowerManagerClient::Observer,
-                          public ash::ShellObserver,
-                          public keyboard::KeyboardControllerObserver,
                           public display::DisplayObserver,
                           public content::WebContentsObserver {
  public:
   // Request lock screen preload when the user is idle. Does nothing if
   // preloading is disabled or if the preload hueristics return false.
   static void RequestPreload();
 
   explicit WebUIScreenLocker(ScreenLocker* screen_locker);
   ~WebUIScreenLocker() override;
 
@@ skipping 66 matching lines @@
 
   // PowerManagerClient::Observer:
   void SuspendImminent() override;
   void SuspendDone(const base::TimeDelta& sleep_duration) override;
   void LidEventReceived(PowerManagerClient::LidState state,
                         const base::TimeTicks& time) override;
 
   // content::WebContentsObserver:
   void RenderProcessGone(base::TerminationStatus status) override;
 
-  // ash::ShellObserver:
-  void OnVirtualKeyboardStateChanged(bool activated,
-                                     ash::WmWindow* root_window) override;
-
-  // keyboard::KeyboardControllerObserver:
-  void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) override;
-  void OnKeyboardClosed() override;
-
   // 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;
 
   // Inform the screen locker that the screen has been locked
   void ScreenLockReady();
 
   // Called when the lock window is ready.
@@ skipping 27 matching lines @@
   bool lock_ready_ = false;
 
   // Tracks when the WebUI finishes loading.
   bool webui_ready_ = false;
 
   // Time when lock was initiated, required for metrics.
   base::TimeTicks lock_time_;
 
   std::unique_ptr<login::NetworkStateHelper> network_state_helper_;
 
-  // True iff this object is observing a keyboard controller.
-  bool is_observing_keyboard_ = false;
-
   base::WeakPtrFactory<WebUIScreenLocker> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebUIScreenLocker);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOCK_WEBUI_SCREEN_LOCKER_H_