Use OnceCallback on Mojo interfaces in //components/autofill

components/autofill/content/renderer/password_autofill_agent.h

 // Copyright 2013 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_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 41 matching lines @@
 
   const mojom::PasswordManagerDriverPtr& GetPasswordManagerDriver();
 
   // mojom::PasswordAutofillAgent:
   void FillPasswordForm(int key,
                         const PasswordFormFillData& form_data) override;
   void SetLoggingState(bool active) override;
   void AutofillUsernameAndPasswordDataReceived(
       const FormsPredictionsMap& predictions) override;
   void FindFocusedPasswordForm(
-      const FindFocusedPasswordFormCallback& callback) override;
+      FindFocusedPasswordFormCallback callback) override;
 
   // WebFrameClient editor related calls forwarded by AutofillAgent.
   // If they return true, it indicates the event was consumed and should not
   // be used for any other autofill activity.
   bool TextDidChangeInTextField(const blink::WebInputElement& element);
 
   // Function that should be called whenever the value of |element| changes due
   // to user input. This is separate from TextDidChangeInTextField() as that
   // function may trigger UI and should only be called when other UI won't be
   // shown.
@@ skipping 234 matching lines @@
   mojom::PasswordManagerDriverPtr password_manager_driver_;
 
   mojo::Binding<mojom::PasswordAutofillAgent> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_