[Autofill] Credit Card Assist Infobar

components/autofill/core/browser/form_structure.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/form_structure.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 272 matching lines @@
 std::ostream& operator<<(
     std::ostream& out,
     const autofill::AutofillQueryResponseContents& response) {
   out << "upload_required: " << response.upload_required();
   for (const auto& field : response.field()) {
     out << "\nautofill_type: " << field.autofill_type();
   }
   return out;
 }
 
+bool IsCreditCardExpirationType(ServerFieldType type) {
+  return type == CREDIT_CARD_EXP_MONTH ||
+         type == CREDIT_CARD_EXP_2_DIGIT_YEAR ||
+         type == CREDIT_CARD_EXP_4_DIGIT_YEAR ||
+         type == CREDIT_CARD_EXP_DATE_2_DIGIT_YEAR ||
+         type == CREDIT_CARD_EXP_DATE_4_DIGIT_YEAR;
+}
+
 }  // namespace
 
 FormStructure::FormStructure(const FormData& form)
     : form_name_(form.name),
       source_url_(form.origin),
       target_url_(form.action),
       autofill_count_(0),
       active_field_count_(0),
       upload_required_(USE_UPLOAD_RATES),
       has_author_specified_types_(false),
@@ skipping 267 matching lines @@
   return base::Uint64ToString(FormSignature64Bit());
 }
 
 bool FormStructure::IsAutofillable() const {
   if (autofill_count() < kRequiredFieldsForPredictionRoutines)
     return false;
 
   return ShouldBeParsed();
 }
 
+bool FormStructure::IsCompleteCreditCardForm() const {
+  bool found_cc_number = false;
+  bool found_cc_expiration = false;
+  for (const AutofillField* field : fields_) {
+    ServerFieldType type = field->Type().GetStorableType();
+    if (!found_cc_expiration && IsCreditCardExpirationType(type)) {
+      found_cc_expiration = true;
+    } else if (!found_cc_number && type == CREDIT_CARD_NUMBER) {
+      found_cc_number = true;
+    }
+    if (found_cc_expiration && found_cc_number)
+      return true;
+  }
+  return false;
+}
+
 void FormStructure::UpdateAutofillCount() {
   autofill_count_ = 0;
   for (const AutofillField* field : *this) {
     if (field && field->IsFieldFillable())
       ++autofill_count_;
   }
 }
 
 bool FormStructure::ShouldBeParsed() const {
   if (active_field_count() < kRequiredFieldsForPredictionRoutines &&
@@ skipping 767 matching lines @@
               filtered_strings[0].at(prefix_len)) {
         // Mismatch found.
         return filtered_strings[i].substr(0, prefix_len);
       }
     }
   }
   return filtered_strings[0];
 }
 
 }  // namespace autofill