[Payments] Have an observer for canMakePayment, for testing.

chrome/browser/ui/views/payments/payment_request_browsertest_base.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/payments/payment_request_browsertest_base.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 73 matching lines @@
   registry->RemoveInterface(payments::mojom::PaymentRequest::Name_);
   registry->AddInterface(
       base::Bind(&PaymentRequestBrowserTestBase::CreatePaymentRequestForTest,
                  base::Unretained(this), web_contents));
 }
 
 void PaymentRequestBrowserTestBase::SetIncognitoForTesting() {
   incognito_for_testing_ = true;
 }
 
+void PaymentRequestBrowserTestBase::OnCanMakePaymentCalled() {
+  if (event_observer_)
+    event_observer_->Observe(DialogEvent::CAN_MAKE_PAYMENT_CALLED);
+}
+
 void PaymentRequestBrowserTestBase::OnDialogOpened() {
   if (event_observer_)
     event_observer_->Observe(DialogEvent::DIALOG_OPENED);
 }
 
 void PaymentRequestBrowserTestBase::OnOrderSummaryOpened() {
   if (event_observer_)
     event_observer_->Observe(DialogEvent::ORDER_SUMMARY_OPENED);
 }
 
@@ skipping 161 matching lines @@
     content::WebContents* web_contents,
     mojo::InterfaceRequest<payments::mojom::PaymentRequest> request) {
   DCHECK(web_contents);
   std::unique_ptr<TestChromePaymentRequestDelegate> delegate =
       base::MakeUnique<TestChromePaymentRequestDelegate>(
           web_contents, this /* observer */, this /* widget_observer */,
           incognito_for_testing_);
   delegate_ = delegate.get();
   PaymentRequestWebContentsManager::GetOrCreateForWebContents(web_contents)
       ->CreatePaymentRequest(web_contents, std::move(delegate),
-                             std::move(request));
+                             std::move(request), this);
 }
 
 void PaymentRequestBrowserTestBase::ClickOnDialogViewAndWait(
     DialogViewID view_id) {
   views::View* view =
       delegate_->dialog_view()->GetViewByID(static_cast<int>(view_id));
   DCHECK(view);
   ClickOnDialogViewAndWait(view);
 }
 
@@ skipping 118 matching lines @@
 
 void PaymentRequestBrowserTestBase::ResetEventObserver(DialogEvent event) {
   event_observer_ = base::MakeUnique<DialogEventObserver>(event);
 }
 
 void PaymentRequestBrowserTestBase::WaitForObservedEvent() {
   event_observer_->Wait();
 }
 
 }  // namespace payments