Migrate call sites LoginDisplayHostImpl::default_host to LoginDisplayHost.

chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc

Index: chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc
diff --git a/chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc b/chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc
index a7b64f57503977d648b64188054c8d0159b6b5a4..5519d580130a800243c50c4024238dd84ac1ed01 100644
--- a/chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc
+++ b/chrome/browser/ui/webui/chromeos/mobile_setup_dialog.cc
@@ -9,7 +9,7 @@
 #include "base/memory/singleton.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_shutdown.h"
-#include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
+#include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
 #include "chrome/browser/chromeos/mobile/mobile_activator.h"
 #include "chrome/browser/platform_util.h"
@@ -86,11 +86,9 @@ void MobileSetupDialogDelegate::ShowDialog(const std::string& service_path) {
 
   gfx::NativeWindow parent = NULL;

[achuithb, 2016/01/21 23:14:31]

nullptr since you're here

[jdufault, 2016/01/22 21:14:11]

Done.

   // If we're on the login screen.
-  if (chromeos::LoginDisplayHostImpl::default_host()) {
-    chromeos::LoginDisplayHostImpl* webui_host =
-        static_cast<chromeos::LoginDisplayHostImpl*>(
-            chromeos::LoginDisplayHostImpl::default_host());
-    chromeos::WebUILoginView* login_view = webui_host->GetWebUILoginView();
+  if (chromeos::LoginDisplayHost::default_host()) {
+    chromeos::WebUILoginView* login_view =
+        chromeos::LoginDisplayHost::default_host()->GetWebUILoginView();
     if (login_view)
       parent = login_view->GetNativeWindow();
   }