Update behavior of one-click infobar to remove modal dialog, add "undo".

chrome/browser/ui/panels/panel.cc

Index: chrome/browser/ui/panels/panel.cc
diff --git a/chrome/browser/ui/panels/panel.cc b/chrome/browser/ui/panels/panel.cc
index d98d0215849783133dcfb3676562f2eda269ce0f..f7f01b676bb4ecf262eb3efd7bcabdc1b6ea5034 100644
--- a/chrome/browser/ui/panels/panel.cc
+++ b/chrome/browser/ui/panels/panel.cc
@@ -518,8 +518,7 @@ void Panel::ShowChromeToMobileBubble() {
 
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
 void Panel::ShowOneClickSigninBubble(
-      const base::Closure& learn_more_callback,
-      const base::Closure& advanced_callback) {
+      const base::Callback<void(bool)>& start_sync_callback) {
   NOTIMPLEMENTED();
 }
 #endif