Reduce boxing and unboxing of AutofillFieldType

chrome/browser/autofill/phone_number.h

Index: chrome/browser/autofill/phone_number.h
diff --git a/chrome/browser/autofill/phone_number.h b/chrome/browser/autofill/phone_number.h
index 3c08b9b91fe01777c6f83e49007d56fd3d65634d..6283f8556554db73227d8c81e9c16ac5ac030ab3 100644
--- a/chrome/browser/autofill/phone_number.h
+++ b/chrome/browser/autofill/phone_number.h
@@ -10,6 +10,7 @@
 
 #include "base/gtest_prod_util.h"
 #include "base/string16.h"
+#include "chrome/browser/autofill/autofill_type.h"
 #include "chrome/browser/autofill/form_group.h"
 
 // A form group that stores phone number information.
@@ -25,11 +26,11 @@ class PhoneNumber : 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);
 
   // Parses |value| to extract the components of a phone number.  |number|
   // returns the trailing 7 digits, |city_code| returns the next 3 digits, and