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

components/autofill/core/browser/field_types.h

Index: components/autofill/core/browser/field_types.h
diff --git a/components/autofill/core/browser/field_types.h b/components/autofill/core/browser/field_types.h
index 4edce988a4e685b89f4a774a9ace528838427114..63410fe780fe044fc2687f34f69ecb125d0c0db8 100644
--- a/components/autofill/core/browser/field_types.h
+++ b/components/autofill/core/browser/field_types.h
@@ -72,7 +72,7 @@ enum ServerFieldType {
 
   // ADDRESS_SHIPPING values [44,50] are deprecated.
 
-  CREDIT_CARD_NAME = 51,
+  CREDIT_CARD_NAME_FULL = 51,
   CREDIT_CARD_NUMBER = 52,
   CREDIT_CARD_EXP_MONTH = 53,
   CREDIT_CARD_EXP_2_DIGIT_YEAR = 54,
@@ -149,10 +149,14 @@ enum ServerFieldType {
   PROBABLY_NEW_PASSWORD = 89,
   NOT_NEW_PASSWORD = 90,
 
+  // Additional field types for credit card fields.
+  CREDIT_CARD_NAME_FIRST = 91,
+  CREDIT_CARD_NAME_LAST = 92,
+
   // No new types can be added without a corresponding change to the Autofill
   // server.
 
-  MAX_VALID_FIELD_TYPE = 91,
+  MAX_VALID_FIELD_TYPE = 93,
 };
 
 // The list of all HTML autocomplete field type hints supported by Chrome.
@@ -184,7 +188,9 @@ enum HtmlFieldType {
   HTML_TYPE_FULL_ADDRESS,  // The complete address, formatted for display.
 
   // Credit card types.
-  HTML_TYPE_CREDIT_CARD_NAME,
+  HTML_TYPE_CREDIT_CARD_NAME_FULL,
+  HTML_TYPE_CREDIT_CARD_NAME_FIRST,
+  HTML_TYPE_CREDIT_CARD_NAME_LAST,
   HTML_TYPE_CREDIT_CARD_NUMBER,
   HTML_TYPE_CREDIT_CARD_EXP,
   HTML_TYPE_CREDIT_CARD_EXP_MONTH,