Revert of Switch components/password_manager code from IPC messages to Mojo.

components/password_manager/core/browser/credential_manager_pending_request_task.h

Index: components/password_manager/core/browser/credential_manager_pending_request_task.h
diff --git a/components/password_manager/core/browser/credential_manager_pending_request_task.h b/components/password_manager/core/browser/credential_manager_pending_request_task.h
index 1cafaf1bd438a60f51e876255797f23b29ff01e9..61211b2194a8a51a8e8121f5b5a212111f28b389 100644
--- a/components/password_manager/core/browser/credential_manager_pending_request_task.h
+++ b/components/password_manager/core/browser/credential_manager_pending_request_task.h
@@ -24,9 +24,6 @@
 struct CredentialInfo;
 class PasswordManagerClient;
 
-typedef base::Callback<void(const CredentialInfo& credential)>
-    SendCredentialCallback;
-
 // Sends credentials retrieved from the PasswordStore to CredentialManager API
 // clients and retrieves embedder-dependent information.
 class CredentialManagerPendingRequestTaskDelegate {
@@ -44,13 +41,11 @@
   virtual PasswordManagerClient* client() const = 0;
 
   // Sends a credential to JavaScript.
-  virtual void SendCredential(const SendCredentialCallback& send_callback,
-                              const CredentialInfo& credential) = 0;
+  virtual void SendCredential(int id, const CredentialInfo& credential) = 0;
 
   // Updates |skip_zero_click| for |form| in the PasswordStore if required.
   // Sends a credential to JavaScript.
-  virtual void SendPasswordForm(const SendCredentialCallback& send_callback,
-                                const autofill::PasswordForm* form) = 0;
+  virtual void SendPasswordForm(int id, const autofill::PasswordForm* form) = 0;
 };
 
 // Retrieves credentials from the PasswordStore.
@@ -58,7 +53,7 @@
  public:
   CredentialManagerPendingRequestTask(
       CredentialManagerPendingRequestTaskDelegate* delegate,
-      const SendCredentialCallback& callback,
+      int request_id,
       bool request_zero_click_only,
       const GURL& request_origin,
       bool include_passwords,
@@ -66,7 +61,7 @@
       const std::vector<std::string>& affiliated_realms);
   ~CredentialManagerPendingRequestTask() override;
 
-  SendCredentialCallback send_callback() const { return send_callback_; }
+  int id() const { return id_; }
   const GURL& origin() const { return origin_; }
 
   // PasswordStoreConsumer implementation.
@@ -75,7 +70,7 @@
 
  private:
   CredentialManagerPendingRequestTaskDelegate* delegate_;  // Weak;
-  SendCredentialCallback send_callback_;
+  const int id_;
   const bool zero_click_only_;
   const GURL origin_;
   const bool include_passwords_;