Convert app banners to use Mojo.

components/test_runner/app_banner_service.h

+// 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.
+
+#ifndef COMPONENTS_TEST_RUNNER_APP_BANNER_SERVICE_H_
+#define COMPONENTS_TEST_RUNNER_APP_BANNER_SERVICE_H_
+
+#include "base/macros.h"
+#include "components/test_runner/test_runner_export.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/system/message_pipe.h"
+#include "third_party/WebKit/public/platform/modules/app_banner/app_banner.mojom.h"
+
+namespace test_runner {
+
+// Test app banner service that is registered as a Mojo service for
+// BeforeInstallPromptEvents to look up when the test runner is executed.
+class TEST_RUNNER_EXPORT AppBannerService
+    : public NON_EXPORTED_BASE(blink::mojom::AppBannerService) {
+ public:
+  AppBannerService();
+  ~AppBannerService() override;
+
+  mojo::ScopedMessagePipeHandle GetEventHandle();
+  mojo::ScopedMessagePipeHandle GetServiceHandle();
+  void ResolvePromise(const std::string& platform);
+
+  // blink::mojom::AppBannerService overrides.
+  void DisplayAppBanner() override;
+
+ private:
+  mojo::Binding<blink::mojom::AppBannerService> binding_;
+  blink::mojom::AppBannerEventPtr event_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppBannerService);
+};
+
+}  // namespace test_runner
+
+#endif  // COMPONENTS_TEST_RUNNER_APP_BANNER_SERVICE_H_