Implement the UI logic behind the Sign In promo in the password bubble

chrome/browser/ui/passwords/passwords_model_delegate.h

Index: chrome/browser/ui/passwords/passwords_model_delegate.h
diff --git a/chrome/browser/ui/passwords/passwords_model_delegate.h b/chrome/browser/ui/passwords/passwords_model_delegate.h
index b07d71881d06d604112208d405a1e6ba9c1e90e8..e6833dfb0d4b085c5bb4660ecd6c1a7363deda6b 100644
--- a/chrome/browser/ui/passwords/passwords_model_delegate.h
+++ b/chrome/browser/ui/passwords/passwords_model_delegate.h
@@ -88,6 +88,8 @@ class PasswordsModelDelegate {
   virtual void NavigateToSmartLockHelpPage() = 0;
   // Open a new tab, pointing to the password manager settings page.
   virtual void NavigateToPasswordManagerSettingsPage() = 0;
+  // Starts the Chrome Sign in flow.
+  virtual void NavigateToChromeSignIn() = 0;
 
   // Called from the dialog controller when the dialog is hidden.
   virtual void OnDialogHidden() = 0;