Change UTF8ToUTF16 to accept const StringPiece&.

chrome/browser/autofill/form_group.cc

 // Copyright (c) 2010 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.
 
+#include <algorithm>
+
 #include "chrome/browser/autofill/form_group.h"
 
 string16 FormGroup::GetPreviewText(const AutoFillType& type) const {
   return GetFieldText(type);
 }
 
 const string16 FormGroup::Label() const { return string16(); }
 
 bool FormGroup::operator!=(const FormGroup& form_group) const {
   FieldTypeSet a, b, symmetric_difference;
@@ skipping 64 matching lines @@
 
 void FormGroup::OverwriteWith(const FormGroup& form_group) {
   FieldTypeSet a;;
   form_group.GetAvailableFieldTypes(&a);
 
   for (FieldTypeSet::const_iterator iter = a.begin(); iter != a.end(); ++iter) {
     AutoFillType type(*iter);
     SetInfo(type, form_group.GetFieldText(type));
   }
 }