cros: HTML fixes needed to reinitializing an existing lock WebUI.

chrome/browser/chromeos/login/screens/user_selection_screen.cc

Index: chrome/browser/chromeos/login/screens/user_selection_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/user_selection_screen.cc b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
index 9ebe8f375ad308cc8361b73fae70b83f20036148..0a136144a6babd51d3ea2a3c21ff868e0256b232 100644
--- a/chrome/browser/chromeos/login/screens/user_selection_screen.cc
+++ b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
@@ -269,6 +269,13 @@ bool UserSelectionScreen::ShouldForceOnlineSignIn(
 
 void UserSelectionScreen::SetHandler(LoginDisplayWebUIHandler* handler) {
   handler_ = handler;
+
+  if (handler_) {
+    // Forcibly refresh all of the user images, as the handler_  instance may

[xiyuan, 2016/12/09 22:47:21]

nit: handler_ -> |handler_| and remove one extra space after it

[jdufault, 2016/12/12 19:52:02]

Done.

+    // have been reused.
+    for (user_manager::User* user : users_)
+      handler_->OnUserImageChanged(*user);
+  }
 }
 
 void UserSelectionScreen::SetView(UserBoardView* view) {