Reduce boxing and unboxing of AutofillFieldType

chrome/browser/autofill/address.h

Index: chrome/browser/autofill/address.h
diff --git a/chrome/browser/autofill/address.h b/chrome/browser/autofill/address.h
index 6e33878f38bf2d144ba35fd4360e34bd4771da0f..009451b3f12ae2d9a23fe598eb76295a7d889691 100644
--- a/chrome/browser/autofill/address.h
+++ b/chrome/browser/autofill/address.h
@@ -10,6 +10,7 @@
 #include <vector>
 
 #include "base/string16.h"
+#include "chrome/browser/autofill/autofill_type.h"
 #include "chrome/browser/autofill/form_group.h"
 
 // A form group that stores address information.
@@ -25,11 +26,11 @@ class Address : public FormGroup {
   virtual void GetPossibleFieldTypes(const string16& text,
                                      FieldTypeSet* possible_types) const;
   virtual void GetAvailableFieldTypes(FieldTypeSet* available_types) const;
-  virtual void FindInfoMatches(const AutofillType& type,
+  virtual void FindInfoMatches(AutofillFieldType type,
                                const string16& info,
                                std::vector<string16>* matched_text) const;
-  virtual string16 GetFieldText(const AutofillType& type) const;
-  virtual void SetInfo(const AutofillType& type, const string16& value);
+  virtual string16 GetFieldText(AutofillFieldType type) const;
+  virtual void SetInfo(AutofillFieldType type, const string16& value);
 
   const std::string& country_code() const { return country_code_; }
   void set_country_code(const std::string& country_code) {