[Payment Request] Change the lifetime management of PaymentRequestImpl

chrome/browser/payments/payment_request_factory.cc

+// Copyright 2016 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/payments/payment_request_factory.h"
+
+#include <memory>
+
+#include "base/logging.h"
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/payments/chrome_payment_request_delegate.h"
+#include "components/payments/payment_request_delegate.h"
+#include "components/payments/payment_request_web_contents_manager.h"
+#include "content/public/browser/web_contents.h"
+
+namespace payments {
+
+void CreatePaymentRequestForWebContents(
+    content::WebContents* web_contents,
+    mojo::InterfaceRequest<payments::mojom::PaymentRequest> request) {
+  DCHECK(web_contents);
+  PaymentRequestWebContentsManager::GetOrCreateForWebContents(web_contents)
+      ->CreatePaymentRequest(web_contents,
+                             base::MakeUnique<ChromePaymentRequestDelegate>(),
+                             std::move(request));
+}
+
+}  // namespace payments