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

components/password_manager/core/browser/password_manager_driver.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_PASSWORD_MANAGER_DRIVER_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_DRIVER_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 60 matching lines @@
   virtual void ShowInitialPasswordAccountSuggestions(
       const autofill::PasswordFormFillData& form_data) = 0;
 
   // Tells the driver to clear previewed password and username fields.
   virtual void ClearPreviewedForm() = 0;
 
   // Tells the driver to find the focused password field and report back
   // the corresponding password form, so that it can be saved.
   virtual void ForceSavePassword() {}
 
+  // Tells the driver to show the manual fallback for password saving, i.e. to
+  // show the omnibox icon with anchored hidden save prompt.
+  virtual void ShowManualFallbackForSaving(const autofill::PasswordForm& form) {
+  }
+
+  // Tells the driver to hide the manual fallback for saving.
+  virtual void HideManualFallbackForSaving() {}
+
   // Tells the driver to find the focused password field and to show generation
   // popup at it.
   virtual void GeneratePassword() {}
 
   // Returns the PasswordGenerationManager associated with this instance.
   virtual PasswordGenerationManager* GetPasswordGenerationManager() = 0;
 
   // Returns the PasswordManager associated with this instance.
   virtual PasswordManager* GetPasswordManager() = 0;
 
@@ skipping 13 matching lines @@
   // Return true iff the driver corresponds to the main frame.
   virtual bool IsMainFrame() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PasswordManagerDriver);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_DRIVER_H_