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

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

Index: chrome/browser/chromeos/login/ui/webui_login_view.h
diff --git a/chrome/browser/chromeos/login/ui/webui_login_view.h b/chrome/browser/chromeos/login/ui/webui_login_view.h
index 5963cf379b356591e5fe50c8b1464e45e7ea2197..5fbd2c7b2e62852ac114824ed3307ddcf2bc9b0d 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_view.h
+++ b/chrome/browser/chromeos/login/ui/webui_login_view.h
@@ -33,6 +33,8 @@ 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,
@@ -78,6 +80,9 @@ class WebUILoginView : public views::View,
   // Returns current WebContents.
   content::WebContents* GetWebContents();
 
+  // Returns instance of the OOBE WebUI.
+  OobeUI* GetOobeUI();
+
   // Opens proxy settings dialog.
   void OpenProxySettings();
 
@@ -112,7 +117,7 @@ class WebUILoginView : public views::View,
                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.
@@ -150,17 +155,17 @@ class WebUILoginView : public views::View,
   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.