Add use_count and use_date to unmasked server cards as well.

components/autofill/core/browser/webdata/autofill_table.h

Index: components/autofill/core/browser/webdata/autofill_table.h
diff --git a/components/autofill/core/browser/webdata/autofill_table.h b/components/autofill/core/browser/webdata/autofill_table.h
index a645e90e0b11dcdaf74f1c17b15aabc2ef1b6b79..542eb0273a70bb249b4b91e9e4ddbb45d28557f7 100644
--- a/components/autofill/core/browser/webdata/autofill_table.h
+++ b/components/autofill/core/browser/webdata/autofill_table.h
@@ -69,7 +69,7 @@ struct FormFieldData;
 //   country_code
 //   use_count          The number of times this profile has been used to fill
 //                      a form.
-//   last_use           The date this profile was last used to fill a form.
+//   use_date           The date this profile was last used to fill a form.
 //   date_modified      The date on which this profile was last modified.
 //                      Added in version 30.
 //   origin             The domain of origin for this profile.
@@ -127,7 +127,7 @@ struct FormFieldData;
 //                      Stores encrypted credit card number.
 //   use_count          The number of times this card has been used to fill
 //                      a form.
-//   last_use           The date this card was last used to fill a form.
+//   use_date           The date this card was last used to fill a form.
 //   date_modified      The date on which this entry was last modified.
 //                      Added in version 30.
 //   origin             The domain of origin for this profile.
@@ -161,6 +161,9 @@ struct FormFieldData;
 //                      masked_credit_cards table to get the rest of the data.
 //   card_number_encrypted
 //                      Full card number, encrypted.
+//   use_count          The number of times this card has been used to fill
+//                      a form.
+//   use_date           The date this card was last used to fill a form.

[brettw, 2015/02/23 19:04:34]

Can we call this (and the other one above) "last_used_date"? Also, the comments
should mention what units this is in (see comment about units below)

[Evan Stade, 2015/02/23 22:57:22]

I'd like to be consistent with the names used in the other tables (the comments
in this file were wrong). I've updated the docs regarding the units and when the
fields were added.

 //
 // server_addresses     This table contains Autofill address data synced from
 //                      the wallet server. It's basically the same as the
@@ -311,6 +314,9 @@ class AutofillTable : public WebDatabaseTable {
                               const base::string16& full_number);
   bool MaskServerCreditCard(const std::string& id);
 
+  // Updates the use count and last use date for an unmasked server card.
+  bool UpdateUnmaskedCardUsageStats(const CreditCard& credit_card);
+
   // Removes rows from autofill_profiles and credit_cards if they were created
   // on or after |delete_begin| and strictly before |delete_end|.  Returns the
   // list of deleted profile guids in |profile_guids|.  Return value is true if
@@ -369,6 +375,7 @@ class AutofillTable : public WebDatabaseTable {
   bool MigrateToVersion57AddFullNameField();
   bool MigrateToVersion60AddServerCards();
   bool MigrateToVersion61AddUsageStats();
+  bool MigrateToVersion62AddUsageStatsForUnmaskedCards();
 
   // Max data length saved in the table;
   static const size_t kMaxDataLength;