Remove ScopedVector from autofill::FormStructure

ios/chrome/browser/autofill/autofill_agent.mm

 // 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.
 
 #import "ios/chrome/browser/autofill/autofill_agent.h"
 
 #include <memory>
 #include <string>
 
 #include "base/format_macros.h"
@@ skipping 833 matching lines @@
   return nil;
 }
 
 - (void)renderAutofillTypePredictions:
     (const std::vector<autofill::FormStructure*>&)structure {
   base::DictionaryValue predictionData;
   for (autofill::FormStructure* form : structure) {
     // |predictionData| will take ownership below.
     base::DictionaryValue* formJSONData = new base::DictionaryValue;
     autofill::FormData formData = form->ToFormData();
-    for (const autofill::AutofillField* field : *form) {
+    for (const auto& field : *form) {
       autofill::AutofillType type(field->Type());
       if (type.IsUnknown())
         continue;
       formJSONData->SetStringWithoutPathExpansion(
           base::UTF16ToUTF8(field->name), type.ToString());
     }
     predictionData.SetWithoutPathExpansion(base::UTF16ToUTF8(formData.name),
                                            formJSONData);
   }
   std::string dataString;
   base::JSONWriter::Write(predictionData, &dataString);
   [jsAutofillManager_ fillPredictionData:base::SysUTF8ToNSString(dataString)];
 }
 
 @end