Revert of Use the modal view when signing in from chrome.identity extension API.

chrome/browser/ui/webui/signin/login_ui_service.cc

Index: chrome/browser/ui/webui/signin/login_ui_service.cc
diff --git a/chrome/browser/ui/webui/signin/login_ui_service.cc b/chrome/browser/ui/webui/signin/login_ui_service.cc
index 11c4093305b68dcdd15f0d171910a2ef2309ab15..dad71a812425d20599814ce6355791be8dc1349d 100644
--- a/chrome/browser/ui/webui/signin/login_ui_service.cc
+++ b/chrome/browser/ui/webui/signin/login_ui_service.cc
@@ -10,7 +10,6 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_pages.h"
-#include "chrome/browser/ui/profile_chooser_constants.h"
 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
 #include "chrome/browser/ui/user_manager.h"
 #include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
@@ -59,15 +58,9 @@ void LoginUIService::ShowLoginPopup() {
   NOTREACHED();
 #else
   chrome::ScopedTabbedBrowserDisplayer displayer(profile_);
-  profiles::BubbleViewMode signin_mode = profiles::BUBBLE_VIEW_MODE_GAIA_SIGNIN;
-  if (SigninViewController::ShouldShowModalSigninForMode(signin_mode)) {
-    displayer.browser()->ShowModalSigninWindow(signin_mode,
-        signin_metrics::AccessPoint::ACCESS_POINT_EXTENSIONS);
-  } else {
-    chrome::ShowBrowserSignin(
-        displayer.browser(),
-        signin_metrics::AccessPoint::ACCESS_POINT_EXTENSIONS);
-  }
+  chrome::ShowBrowserSignin(
+      displayer.browser(),
+      signin_metrics::AccessPoint::ACCESS_POINT_EXTENSIONS);
 #endif
 }