autofill: switch autofill_regexes to RE2 library

components/autofill/core/browser/name_field.cc

 // 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.
 
 #include "components/autofill/core/browser/name_field.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
 #include "components/autofill/core/browser/autofill_regex_constants.h"
 #include "components/autofill/core/browser/autofill_scanner.h"
 #include "components/autofill/core/browser/autofill_type.h"
 
-using base::UTF8ToUTF16;
-
 namespace autofill {
 namespace {
 
 // A form field that can parse a full name field.
 class FullNameField : public NameField {
  public:
   static scoped_ptr<FullNameField> Parse(AutofillScanner* scanner);
 
  protected:
   // FormField:
@@ skipping 47 matching lines @@
 
 // This is overriden in concrete subclasses.
 bool NameField::ClassifyField(ServerFieldTypeMap* map) const {
   return false;
 }
 
 // static
 scoped_ptr<FullNameField> FullNameField::Parse(AutofillScanner* scanner) {
   // Exclude e.g. "username" or "nickname" fields.
   scanner->SaveCursor();
-  bool should_ignore = ParseField(scanner, UTF8ToUTF16(kNameIgnoredRe), NULL);
+  bool should_ignore = ParseField(scanner, kNameIgnoredRe, NULL);
   scanner->Rewind();
   if (should_ignore)
     return NULL;
 
   // Searching for any label containing the word "name" is too general;
   // for example, Travelocity_Edit travel profile.html contains a field
   // "Travel Profile Name".
   AutofillField* field = NULL;
-  if (ParseField(scanner, UTF8ToUTF16(kNameRe), &field))
+  if (ParseField(scanner, kNameRe, &field))
     return make_scoped_ptr(new FullNameField(field));
 
   return NULL;
 }
 
 bool FullNameField::ClassifyField(ServerFieldTypeMap* map) const {
   return AddClassification(field_, NAME_FULL, map);
 }
 
 FullNameField::FullNameField(AutofillField* field) : field_(field) {
 }
 
 scoped_ptr<FirstLastNameField> FirstLastNameField::ParseSpecificName(
     AutofillScanner* scanner) {
   // Some pages (e.g. Overstock_comBilling.html, SmithsonianCheckout.html)
   // have the label "Name" followed by two or three text fields.
   scoped_ptr<FirstLastNameField> v(new FirstLastNameField);
   scanner->SaveCursor();
 
   AutofillField* next = NULL;
-  if (ParseField(scanner, UTF8ToUTF16(kNameSpecificRe), &v->first_name_) &&
+  if (ParseField(scanner, kNameSpecificRe, &v->first_name_) &&
       ParseEmptyLabel(scanner, &next)) {
     if (ParseEmptyLabel(scanner, &v->last_name_)) {
       // There are three name fields; assume that the middle one is a
       // middle initial (it is, at least, on SmithsonianCheckout.html).
       v->middle_name_ = next;
       v->middle_initial_ = true;
     } else {  // only two name fields
       v->last_name_ = next;
     }
 
@@ skipping 16 matching lines @@
   // dell_checkout1.html).  At least one UK page (The China Shop2.html)
   // asks, in stuffy English style, for just initials and a surname,
   // so we match "initials" here (and just fill in a first name there,
   // American-style).
   // The ".*first$" matches fields ending in "first" (example in sample8.html).
   // The ".*last$" matches fields ending in "last" (example in sample8.html).
 
   // Allow name fields to appear in any order.
   while (!scanner->IsEnd()) {
     // Skip over any unrelated fields, e.g. "username" or "nickname".
-    if (ParseFieldSpecifics(scanner, UTF8ToUTF16(kNameIgnoredRe),
+    if (ParseFieldSpecifics(scanner, kNameIgnoredRe,
                             MATCH_DEFAULT | MATCH_SELECT, NULL)) {
           continue;
     }
 
-    if (!v->first_name_ &&
-        ParseField(scanner, UTF8ToUTF16(kFirstNameRe), &v->first_name_)) {
+    if (!v->first_name_ && ParseField(scanner, kFirstNameRe, &v->first_name_)) {
       continue;
     }
 
     // We check for a middle initial before checking for a middle name
     // because at least one page (PC Connection.html) has a field marked
     // as both (the label text is "MI" and the element name is
     // "txtmiddlename"); such a field probably actually represents a
     // middle initial.
     if (!v->middle_name_ &&
-        ParseField(scanner, UTF8ToUTF16(kMiddleInitialRe), &v->middle_name_)) {
+        ParseField(scanner, kMiddleInitialRe, &v->middle_name_)) {
       v->middle_initial_ = true;
       continue;
     }
 
     if (!v->middle_name_ &&
-        ParseField(scanner, UTF8ToUTF16(kMiddleNameRe), &v->middle_name_)) {
+        ParseField(scanner, kMiddleNameRe, &v->middle_name_)) {
       continue;
     }
 
-    if (!v->last_name_ &&
-        ParseField(scanner, UTF8ToUTF16(kLastNameRe), &v->last_name_)) {
+    if (!v->last_name_ && ParseField(scanner, kLastNameRe, &v->last_name_)) {
       continue;
     }
 
     break;
   }
 
   // Consider the match to be successful if we detected both first and last name
   // fields.
   if (v->first_name_ && v->last_name_)
     return v.Pass();
@@ skipping 20 matching lines @@
 
 bool FirstLastNameField::ClassifyField(ServerFieldTypeMap* map) const {
   bool ok = AddClassification(first_name_, NAME_FIRST, map);
   ok = ok && AddClassification(last_name_, NAME_LAST, map);
   ServerFieldType type = middle_initial_ ? NAME_MIDDLE_INITIAL : NAME_MIDDLE;
   ok = ok && AddClassification(middle_name_, type, map);
   return ok;
 }
 
 }  // namespace autofill