Adjust displayed phone number for prefix/suffix case.

components/autofill/core/browser/autofill_field.h

Index: components/autofill/core/browser/autofill_field.h
diff --git a/components/autofill/core/browser/autofill_field.h b/components/autofill/core/browser/autofill_field.h
index b810e76010cef8ce961ae903adce385e093dc2d3..0da05c3e708627ca0496023c90c64a934293868a 100644
--- a/components/autofill/core/browser/autofill_field.h
+++ b/components/autofill/core/browser/autofill_field.h
@@ -75,6 +75,12 @@ class AutofillField : public FormFieldData {
                             const std::string& app_locale,
                             FormFieldData* field_data);
 
+  // Get value for phone number. The value could be |number|, or possibly an
+  // appropriate substring of |number| if it's for phone prefix or suffix field.

[Ilya Sherman, 2014/09/11 05:32:14]

nit: Suggested rephrasing; feel free to further improve: "Returns the phone
number value that should be filled into the given |field|. The returned value
might be |number|, or could possibly be a prefix or suffix of |number| if that's
appropriate for the field."

[ziran.sun, 2014/09/22 13:46:33]

Done.

+  static base::string16 GetPhoneNumberValue(const AutofillField& field,
+                                            const base::string16& number,
+                                            const FormFieldData& field_data);
+
  private:
   // The unique name of this field, generated by Autofill.
   base::string16 unique_name_;