[Autofill] Add credit card first and last name heuristics predictions.

components/autofill/core/browser/autofill_manager_unittest.cc

Index: components/autofill/core/browser/autofill_manager_unittest.cc
diff --git a/components/autofill/core/browser/autofill_manager_unittest.cc b/components/autofill/core/browser/autofill_manager_unittest.cc
index 3588d9d34e9a2b4e8548d1e9ea34e7835f2eed6f..b66f15f6a3da6111cddc3a20fd601302be7d1730 100644
--- a/components/autofill/core/browser/autofill_manager_unittest.cc
+++ b/components/autofill/core/browser/autofill_manager_unittest.cc
@@ -1979,6 +1979,42 @@ TEST_F(AutofillManagerTest, FillCreditCardFormYearMonth) {
       kDefaultPageID, false, "2012", "04");
 }
 
+// Test that we correctly fill a credit card form with first and last cardholder
+// name.
+TEST_F(AutofillManagerTest, FillCreditCardFormSplitName) {
+  // Set up our form data.
+  FormData form;
+  form.name = ASCIIToUTF16("MyForm");
+  form.origin = GURL("https://myform.com/form.html");
+  form.action = GURL("https://myform.com/submit.html");
+
+  FormFieldData field;
+  test::CreateTestFormField("Card Name", "cardname", "", "text", &field);
+  form.fields.push_back(field);
+  test::CreateTestFormField("Last Name", "cardlastname", "", "text", &field);
+  form.fields.push_back(field);
+  test::CreateTestFormField("Card Number", "cardnumber", "", "text", &field);
+  form.fields.push_back(field);
+  test::CreateTestFormField("CVC", "cvc", "", "text", &field);
+  form.fields.push_back(field);
+
+  std::vector<FormData> forms(1, form);
+  FormsSeen(forms);
+
+  const char guid[] = "00000000-0000-0000-0000-000000000004";
+  int response_page_id = 0;
+  FormData response_data;
+  FillAutofillFormDataAndSaveResults(kDefaultPageID, form, *form.fields.begin(),
+                                     MakeFrontendID(guid, std::string()),
+                                     &response_page_id, &response_data);
+  ExpectFilledField("Card Name", "cardname", "Elvis", "text",
+                    response_data.fields[0]);
+  ExpectFilledField("Last Name", "cardlastname", "Presley", "text",
+                    response_data.fields[1]);
+  ExpectFilledField("Card Number", "cardnumber", "4234567890123456", "text",
+                    response_data.fields[2]);
+}
+
 // Test that we correctly fill a combined address and credit card form.
 TEST_F(AutofillManagerTest, FillAddressAndCreditCardForm) {
   // Set up our form data.