PaymentApp: Implement PaymentAppProvider for LayoutTest.

components/test_runner/test_runner.cc

Index: components/test_runner/test_runner.cc
diff --git a/components/test_runner/test_runner.cc b/components/test_runner/test_runner.cc
index 42077622b9b0d6a43e1949240056a8ff4666c858..bcb375da20c44a599c5da01cfcd189d5a2f347eb 100644
--- a/components/test_runner/test_runner.cc
+++ b/components/test_runner/test_runner.cc
@@ -200,6 +200,10 @@ class TestRunnerBindings : public gin::Wrappable<TestRunnerBindings> {
   void SetBluetoothFakeAdapter(const std::string& adapter_name,
                                v8::Local<v8::Function> callback);
   void SetBluetoothManualChooser(bool enable);
+
+  void GetAllPaymentAppIDs(v8::Local<v8::Function> callback);
+  void InvokePaymentApp(int64_t registration_id);
+
   void SetCanOpenWindows();
   void SetCloseRemainingWindowsWhenComplete(gin::Arguments* args);
   void SetColorProfile(const std::string& name,
@@ -506,6 +510,9 @@ gin::ObjectTemplateBuilder TestRunnerBindings::GetObjectTemplateBuilder(
                  &TestRunnerBindings::SetBluetoothFakeAdapter)
       .SetMethod("setBluetoothManualChooser",
                  &TestRunnerBindings::SetBluetoothManualChooser)
+      .SetMethod("getAllPaymentAppIDs",
+                 &TestRunnerBindings::GetAllPaymentAppIDs)
+      .SetMethod("invokePaymentApp", &TestRunnerBindings::InvokePaymentApp)
       .SetMethod("setCallCloseOnWebViews", &TestRunnerBindings::NotImplemented)
       .SetMethod("setCanOpenWindows", &TestRunnerBindings::SetCanOpenWindows)
       .SetMethod("setCloseRemainingWindowsWhenComplete",
@@ -1350,6 +1357,16 @@ void TestRunnerBindings::SetBluetoothManualChooser(bool enable) {
     view_runner_->SetBluetoothManualChooser(enable);
 }
 
+void TestRunnerBindings::GetAllPaymentAppIDs(v8::Local<v8::Function> callback) {
+  if (view_runner_)
+    view_runner_->GetAllPaymentAppIDs(callback);
+}
+
+void TestRunnerBindings::InvokePaymentApp(int64_t registration_id) {
+  if (view_runner_)
+    view_runner_->InvokePaymentApp(registration_id);
+}
+
 void TestRunnerBindings::GetBluetoothManualChooserEvents(
     v8::Local<v8::Function> callback) {
   if (view_runner_)