PaymentHandler: Implement PaymentInstruments.delete().

content/browser/payments/payment_manager.cc

Index: content/browser/payments/payment_manager.cc
diff --git a/content/browser/payments/payment_manager.cc b/content/browser/payments/payment_manager.cc
index 62aca5c85d905fd0c88f7bc6406408c5bca939c5..2454d48a124f82285fb29e611921cd02262b6b0a 100644
--- a/content/browser/payments/payment_manager.cc
+++ b/content/browser/payments/payment_manager.cc
@@ -57,6 +57,15 @@ void PaymentManager::GetManifest(const GetManifestCallback& callback) {
   payment_app_context_->payment_app_database()->ReadManifest(scope_, callback);
 }
 
+void PaymentManager::DeletePaymentInstrument(
+    const std::string& instrumentKey,

[please use gerrit instead, 2017/04/25 15:21:40]

hacker_case

[zino, 2017/04/25 21:48:51]

Done.

+    const PaymentManager::DeletePaymentInstrumentCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  payment_app_context_->payment_app_database()->DeletePaymentInstrument(
+      scope_, instrumentKey, callback);
+}
+
 void PaymentManager::SetPaymentInstrument(
     const std::string& instrumentKey,
     payments::mojom::PaymentInstrumentPtr details,