Convert app banners to use Mojo.

components/test_runner/app_banner_service.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 "components/test_runner/app_banner_service.h"
+
+namespace test_runner {
+
+AppBannerService::AppBannerService() : binding_(this) {}
+
+AppBannerService::~AppBannerService() {}
+
+void AppBannerService::ResolvePromise(const std::string& platform) {
+  if (!event_.is_bound())
+    return;
+
+  // Empty platform means to resolve as a dismissal.
+  if (platform.empty())
+    event_->BannerDismissed();
+  else
+    event_->BannerAccepted(platform);
+}
+
+void AppBannerService::SendBannerPromptRequest(
+    const std::vector<std::string>& platforms,
+    const base::Callback<void(bool)>& callback) {
+  if (!controller_.is_bound())
+    return;
+
+  controller_->BannerPromptRequest(
+      binding_.CreateInterfacePtrAndBind(), mojo::GetProxy(&event_), platforms,
+      base::Bind(&AppBannerService::OnBannerPromptReply, base::Unretained(this),
+                 callback));
+}
+
+void AppBannerService::DisplayAppBanner() { /* do nothing */ }
+
+void AppBannerService::OnBannerPromptReply(
+    const base::Callback<void(bool)>& callback,
+    blink::mojom::AppBannerPromptReply reply,
+    const std::string& referrer) {
+  callback.Run(reply == blink::mojom::AppBannerPromptReply::CANCEL);
+}
+
+}  // namespace test_runner