[Password Manager] Show omnibox icon and anchored prompt once user start typing password

chrome/browser/ui/passwords/passwords_client_ui_delegate.h

Index: chrome/browser/ui/passwords/passwords_client_ui_delegate.h
diff --git a/chrome/browser/ui/passwords/passwords_client_ui_delegate.h b/chrome/browser/ui/passwords/passwords_client_ui_delegate.h
index b2b5928a8c88f272fe721ce341004f897a2e9963..e88918aa0286ef461c65f5504070b6653c2f1dcc 100644
--- a/chrome/browser/ui/passwords/passwords_client_ui_delegate.h
+++ b/chrome/browser/ui/passwords/passwords_client_ui_delegate.h
@@ -38,6 +38,16 @@ class PasswordsClientUIDelegate {
   virtual void OnUpdatePasswordSubmitted(
       std::unique_ptr<password_manager::PasswordFormManager> form_manager) = 0;
 
+  // Called when the user starts typing in a password field. This creates a
+  // save/update prompt anchored to the omnibox icon but keeps it hidden.

[vasilii, 2017/07/21 12:48:20]

It doesn't create any prompt. Only the icon.

[kolos1, 2017/07/24 15:33:30]

Done.

+  virtual void OnShowManualFallback(

[vasilii, 2017/07/21 12:48:20]

ForSaving

[kolos1, 2017/07/24 15:33:30]

Done.

+      std::unique_ptr<password_manager::PasswordFormManager> form_manager,
+      bool is_update) = 0;
+
+  // Called when the user cleared the password field. This removes the hidden
+  // save/update prompt and switch UI to |MANAGE_STATE|.

[vasilii, 2017/07/21 12:48:20]

There is no a hidden prompt at any point in time. It just switches the state.
Also it's interesting to know what happens if the bubble is currently open.

[kolos1, 2017/07/24 15:33:30]

Done.

+  virtual void OnHideManualFallback() = 0;
+
   // Called when the site asks user to choose from credentials. This triggers
   // the UI to prompt the user. |local_credentials| shouldn't be empty. |origin|
   // is a URL of the site that requested a credential.