Create syncable metadata table for Wallet credit cards and addresses.

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

Index: components/autofill/core/browser/webdata/autofill_webdata_backend_impl.h
diff --git a/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.h b/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.h
index 50f510aa283ccfe8930db09757c0ab346974fffc..18c54f7b74c9d1b807881c0eb1f29716319a3ddb 100644
--- a/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.h
+++ b/components/autofill/core/browser/webdata/autofill_webdata_backend_impl.h
@@ -137,16 +137,20 @@ class AutofillWebDataBackendImpl
 
   // Server credit cards can be masked (only last 4 digits stored) or unmasked
   // (all data stored). These toggle between the two states.
-  WebDatabase::State UnmaskServerCreditCard(const std::string& id,
+  WebDatabase::State UnmaskServerCreditCard(const CreditCard& card,
                                             const base::string16& full_number,
                                             WebDatabase* db);
   WebDatabase::State MaskServerCreditCard(const std::string& id,
                                           WebDatabase* db);
 
-  WebDatabase::State UpdateUnmaskedCardUsageStats(
+  WebDatabase::State UpdateServerCardUsageStats(
       const CreditCard& credit_card,
       WebDatabase* db);
 
+  WebDatabase::State UpdateServerAddressUsageStats(
+      const AutofillProfile& profile,
+      WebDatabase* db);
+
   WebDatabase::State ClearAllServerData(WebDatabase* db);
 
   // Removes Autofill records from the database. Valid only for local