[Autofill] Add upstreaming UKM

ios/chrome/browser/ui/autofill/autofill_client_ios.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 IOS_CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_CLIENT_IOS_H_
 #define IOS_CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_CLIENT_IOS_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 41 matching lines @@
       password_manager::PasswordGenerationManager* password_generation_manager,
       std::unique_ptr<IdentityProvider> identity_provider);
   ~AutofillClientIOS() override;
 
   // AutofillClient implementation.
   PersonalDataManager* GetPersonalDataManager() override;
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   IdentityProvider* GetIdentityProvider() override;
   rappor::RapporServiceImpl* GetRapporServiceImpl() override;
+  ukm::UkmService* GetUkmService() override;
   void ShowAutofillSettings() override;
   void ShowUnmaskPrompt(const CreditCard& card,
                         UnmaskCardReason reason,
                         base::WeakPtr<CardUnmaskDelegate> delegate) override;
   void OnUnmaskVerificationResult(PaymentsRpcResult result) override;
   void ConfirmSaveCreditCardLocally(const CreditCard& card,
                                     const base::Closure& callback) override;
   void ConfirmSaveCreditCardToCloud(
       const CreditCard& card,
       std::unique_ptr<base::DictionaryValue> legal_message,
@@ skipping 34 matching lines @@
   password_manager::PasswordGenerationManager* password_generation_manager_;
   std::unique_ptr<IdentityProvider> identity_provider_;
   CardUnmaskPromptControllerImpl unmask_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillClientIOS);
 };
 
 }  // namespace autofill
 
 #endif  // IOS_CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_CLIENT_IOS_H_