Display local signin error without browser and record the path of selected profile in user manager.

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

Index: chrome/browser/ui/webui/signin/signin_error_handler.cc
diff --git a/chrome/browser/ui/webui/signin/signin_error_handler.cc b/chrome/browser/ui/webui/signin/signin_error_handler.cc
index 26b9d8a4f0090cfe2eede730ffd3bdf057f62364..5db22f44bf882dfbfa57e0999fa4a90db2857177 100644
--- a/chrome/browser/ui/webui/signin/signin_error_handler.cc
+++ b/chrome/browser/ui/webui/signin/signin_error_handler.cc
@@ -10,10 +10,19 @@
 #include "chrome/browser/profiles/profile_window.h"
 #include "chrome/browser/signin/signin_ui_util.h"
 #include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/user_manager.h"
 #include "chrome/browser/ui/webui/signin/signin_utils.h"
 #include "content/public/browser/web_ui.h"
 #include "url/gurl.h"
 
+// static
+SigninErrorHandler* SigninErrorHandler::Create(bool is_system_profile) {
+  if (is_system_profile)
+    return new SigninErrorWithoutBrowserHandler();

[pastarmovj, 2016/09/21 08:44:10]

I haven't looked at the calling site but it would be nice if we can wrap the
result in a unique_ptr.

[zmin, 2016/09/21 16:40:04]

The handler will be assigned to webui
https://cs.chromium.org/chromium/src/chrome/browser/ui/webui/signin/signin_er...

And eventually stored in a scopedvector
https://cs.chromium.org/chromium/src/content/browser/webui/web_ui_impl.h?cl=G...

+  else
+    return new SigninErrorHandler();
+}
+
 void SigninErrorHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback(
       "confirm",
@@ -74,3 +83,10 @@ void SigninErrorHandler::CloseDialog() {
   DCHECK(browser);
   browser->CloseModalSigninWindow();
 }
+
+SigninErrorWithoutBrowserHandler::SigninErrorWithoutBrowserHandler()
+    : SigninErrorHandler() {}
+
+void SigninErrorWithoutBrowserHandler::CloseDialog() {
+  UserManager::HideReauthDialog();
+}