Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp

Index: third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp b/third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp
index 278b5494664aa60effd802c7a76776711a801915..ed79d3d7a371dd2e2262838113bdd566528c2b48 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentResponseTest.cpp
@@ -135,9 +135,9 @@ TEST(PaymentResponseTest, JSONSerializerTest) {
   input->shipping_address->country = "US";
   input->shipping_address->language_code = "en";
   input->shipping_address->script_code = "Latn";
-  input->shipping_address->address_line.append("340 Main St");
-  input->shipping_address->address_line.append("BIN1");
-  input->shipping_address->address_line.append("First floor");
+  input->shipping_address->address_line.push_back("340 Main St");
+  input->shipping_address->address_line.push_back("BIN1");
+  input->shipping_address->address_line.push_back("First floor");
 
   PaymentResponse output(std::move(input), new MockPaymentCompleter);
   ScriptValue jsonObject = output.toJSONForBinding(scope.getScriptState());