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

components/password_manager/core/browser/stub_password_manager_client.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_STUB_PASSWORD_MANAGER_CLIENT_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_STUB_PASSWORD_MANAGER_CLIENT_H_
 
 #include "base/macros.h"
 #include "components/password_manager/core/browser/password_manager_client.h"
 #include "components/password_manager/core/browser/password_manager_metrics_recorder.h"
 #include "components/password_manager/core/browser/stub_credentials_filter.h"
 #include "components/password_manager/core/browser/stub_log_manager.h"
 
 namespace password_manager {
 
 // Use this class as a base for mock or test clients to avoid stubbing
 // uninteresting pure virtual methods. All the implemented methods are just
 // trivial stubs.  Do NOT use in production, only use in tests.
 class StubPasswordManagerClient : public PasswordManagerClient {
  public:
   StubPasswordManagerClient();
   ~StubPasswordManagerClient() override;
 
   // PasswordManagerClient:
   bool PromptUserToSaveOrUpdatePassword(
       std::unique_ptr<PasswordFormManager> form_to_save,
       bool update_password) override;
+  void ShowManualFallback(std::unique_ptr<PasswordFormManager> form_to_save,
+                          bool update_password) override;
+  void HideManualFallback() override;
   bool PromptUserToChooseCredentials(
       std::vector<std::unique_ptr<autofill::PasswordForm>> local_forms,
       const GURL& origin,
       const CredentialsCallback& callback) override;
   void NotifyUserAutoSignin(
       std::vector<std::unique_ptr<autofill::PasswordForm>> local_forms,
       const GURL& origin) override;
   void NotifyUserCouldBeAutoSignedIn(
       std::unique_ptr<autofill::PasswordForm>) override;
   void NotifySuccessfulLoginWithExistingPassword(
@@ skipping 23 matching lines @@
   StubLogManager log_manager_;
   ukm::SourceId ukm_source_id_;
   PasswordManagerMetricsRecorder metrics_recorder_;
 
   DISALLOW_COPY_AND_ASSIGN(StubPasswordManagerClient);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_STUB_PASSWORD_MANAGER_CLIENT_H_