Clear wallet data from autofill when disabled.

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

Index: components/autofill/core/browser/webdata/autofill_table.cc
diff --git a/components/autofill/core/browser/webdata/autofill_table.cc b/components/autofill/core/browser/webdata/autofill_table.cc
index 6175545cbc50f7eb630e044624fbc0d98f2325f2..5a3761b641c3cf73ce3332d54f905dc16ba55bf6 100644
--- a/components/autofill/core/browser/webdata/autofill_table.cc
+++ b/components/autofill/core/browser/webdata/autofill_table.cc
@@ -952,6 +952,10 @@ bool AutofillTable::GetServerProfiles(std::vector<AutofillProfile*>* profiles) {
 
 void AutofillTable::SetServerProfiles(
     const std::vector<AutofillProfile>& profiles) {
+  sql::Transaction transaction(db_);
+  if (!transaction.Begin())
+    return;
+
   // Delete all old ones first.
   sql::Statement delete_old(db_->GetUniqueStatement(
       "DELETE FROM server_addresses"));
@@ -996,6 +1000,8 @@ void AutofillTable::SetServerProfiles(
     insert.Run();
     insert.Reset(true);
   }
+
+  transaction.Commit();
 }
 
 bool AutofillTable::UpdateAutofillProfile(const AutofillProfile& profile) {