[Kiosk] Remove unnsessesary duplications in LoginDisplayHost

Function calls in OnStart{Web|Arc}Kiosk are identical to
OnStartAppLaunch. Let's remove them.

Bug: 1043663
Change-Id: I9f748f4d32374eb9cc622dd6ca80e8375c29c745
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2011838
Commit-Queue: Anatoliy Potapchuk <apotapchuk@chromium.org>
Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#733961}

chrome/browser/chromeos/login/ui/login_display_host_common.cc

@@ -172,7 +172,7 @@ void LoginDisplayHostCommon::StartArcKiosk(const AccountId& account_id) {
       std::make_unique<ArcKioskController>(this, GetOobeUI());
   arc_kiosk_controller_->StartArcKiosk(account_id);
 
-  OnStartArcKiosk();
+  OnStartAppLaunch();
 }
 
 void LoginDisplayHostCommon::StartWebKiosk(const AccountId& account_id) {
@@ -200,7 +200,7 @@ void LoginDisplayHostCommon::StartWebKiosk(const AccountId& account_id) {
     // shown by the DeviceDisablingManager.
     return;
   }
-  OnStartWebKiosk();
+  OnStartAppLaunch();
 
   web_kiosk_controller_ =
       std::make_unique<WebKioskController>(this, GetOobeUI());

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

@@ -70,8 +70,6 @@ class LoginDisplayHostCommon : public LoginDisplayHost,
  protected:
   virtual void OnStartSignInScreen(const LoginScreenContext& context) = 0;
   virtual void OnStartAppLaunch() = 0;
-  virtual void OnStartArcKiosk() = 0;
-  virtual void OnStartWebKiosk() = 0;
   virtual void OnBrowserCreated() = 0;
   virtual void OnStartUserAdding() = 0;
   virtual void OnFinalize() = 0;

chrome/browser/chromeos/login/ui/login_display_host_mojo.cc

@@ -250,14 +250,6 @@ void LoginDisplayHostMojo::OnStartAppLaunch() {
   ShowFullScreen();
 }
 
-void LoginDisplayHostMojo::OnStartArcKiosk() {
-  ShowFullScreen();
-}
-
-void LoginDisplayHostMojo::OnStartWebKiosk() {
-  ShowFullScreen();
-}
-
 void LoginDisplayHostMojo::OnBrowserCreated() {
   NOTIMPLEMENTED();
 }

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

@@ -82,8 +82,6 @@ class LoginDisplayHostMojo : public LoginDisplayHostCommon,
   void OnStartSignInScreen(const LoginScreenContext& context) override;
   void OnPreferencesChanged() override;
   void OnStartAppLaunch() override;
-  void OnStartArcKiosk() override;
-  void OnStartWebKiosk() override;
   void OnBrowserCreated() override;
   void ShowGaiaDialog(bool can_close,
                       const AccountId& prefilled_account) override;

chrome/browser/chromeos/login/ui/login_display_host_webui.cc

@@ -650,24 +650,6 @@ void LoginDisplayHostWebUI::OnStartAppLaunch() {
   login_view_->set_should_emit_login_prompt_visible(false);
 }
 
-void LoginDisplayHostWebUI::OnStartArcKiosk() {
-  finalize_animation_type_ = ANIMATION_FADE_OUT;
-  if (!login_window_) {
-    LoadURL(GURL(kAppLaunchSplashURL));
-  }
-
-  login_view_->set_should_emit_login_prompt_visible(false);
-}
-
-void LoginDisplayHostWebUI::OnStartWebKiosk() {
-  finalize_animation_type_ = ANIMATION_FADE_OUT;
-  if (!login_window_) {
-    LoadURL(GURL(kAppLaunchSplashURL));
-  }
-
-  login_view_->set_should_emit_login_prompt_visible(false);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // LoginDisplayHostWebUI, public
 

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

@@ -79,8 +79,6 @@ class LoginDisplayHostWebUI : public LoginDisplayHostCommon,
   void OnStartSignInScreen(const LoginScreenContext& context) override;
   void OnPreferencesChanged() override;
   void OnStartAppLaunch() override;
-  void OnStartArcKiosk() override;
-  void OnStartWebKiosk() override;
   void OnBrowserCreated() override;
   void ShowGaiaDialog(bool can_close,
                       const AccountId& prefilled_account) override;