cros: Cleanup lock screen and OOBE C++ backing code.

chrome/browser/chromeos/login/ui/webui_login_view.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_WEBUI_LOGIN_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_VIEW_H_
 
 #include <map>
 #include <string>
 
@@ skipping 15 matching lines @@
 }
 
 namespace views {
 class View;
 class WebView;
 class Widget;
 }
 
 namespace chromeos {
 
+class OobeUI;
+
 // View used to render a WebUI supporting Widget. This widget is used for the
 // WebUI based start up and lock screens. It contains a WebView.
 class WebUILoginView : public views::View,
                        public content::WebContentsDelegate,
                        public content::NotificationObserver,
                        public ChromeWebModalDialogManagerDelegate,
                        public web_modal::WebContentsModalDialogHost {
  public:
   // Internal class name.
   static const char kViewClassName[];
@@ skipping 25 matching lines @@
 
   // Loads given page. Should be called after Init() has been called.
   void LoadURL(const GURL& url);
 
   // Returns current WebUI.
   content::WebUI* GetWebUI();
 
   // Returns current WebContents.
   content::WebContents* GetWebContents();
 
+  // Returns instance of the OOBE WebUI.
+  OobeUI* GetOobeUI();
+
   // Opens proxy settings dialog.
   void OpenProxySettings();
 
   // Called when WebUI is being shown after being initilized hidden.
   void OnPostponedShow();
 
   // Toggles status area visibility.
   void SetStatusAreaVisible(bool visible);
 
   // Sets whether UI should be enabled.
@@ skipping 14 matching lines @@
   void OnLocaleChanged() override;
   void ChildPreferredSizeChanged(View* child) override;
   void AboutToRequestFocusFromTabTraversal(bool reverse) override;
 
   // Overridden from content::NotificationObserver.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // WebView for rendering a webpage as a webui login.
-  views::WebView* webui_login_;
+  views::WebView* webui_login_ = nullptr;
 
  private:
   // Map type for the accelerator-to-identifier map.
   typedef std::map<ui::Accelerator, std::string> AccelMap;
 
   // Overridden from content::WebContentsDelegate.
   bool HandleContextMenu(const content::ContextMenuParams& params) override;
   void HandleKeyboardEvent(
       content::WebContents* source,
       const content::NativeWebKeyboardEvent& event) override;
@@ skipping 17 matching lines @@
 
   content::NotificationRegistrar registrar_;
 
   // Converts keyboard events on the WebContents to accelerators.
   views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 
   // Maps installed accelerators to OOBE webui accelerator identifiers.
   AccelMap accel_map_;
 
   // True when WebUI is being initialized hidden.
-  bool is_hidden_;
+  bool is_hidden_ = false;
 
   // True when the WebUI has finished initializing and is visible.
-  bool webui_visible_;
+  bool webui_visible_ = false;
 
   // Should we emit the login-prompt-visible signal when the login page is
   // displayed?
-  bool should_emit_login_prompt_visible_;
+  bool should_emit_login_prompt_visible_ = true;
 
   // True to forward keyboard event.
-  bool forward_keyboard_event_;
+  bool forward_keyboard_event_ = true;
 
   // A FocusTraversable for StatusAreaWidget that uses
   // |status_area_widget_host_| as placeholder in WebUiLoginView's focus chain.
   class StatusAreaFocusTraversable;
   std::unique_ptr<StatusAreaFocusTraversable> status_area_focus_traversable_;
   views::View* status_area_widget_host_ = nullptr;
 
   // A FocusTraversable for WebUILoginView that loops back at the end of its
   // focus chain.
   class CycleFocusTraversable;
   std::unique_ptr<CycleFocusTraversable> cycle_focus_traversable_;
 
   base::ObserverList<web_modal::ModalDialogHostObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(WebUILoginView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_VIEW_H_