mash: Move directly linked NewWindowDelegate to mojom::NewWindowClient.

ash/common/new_window_client_proxy.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 "ash/common/new_window_client_proxy.h"
+
+#include "base/logging.h"
+#include "services/service_manager/public/cpp/connector.h"
+
+namespace ash {
+
+NewWindowClientProxy::NewWindowClientProxy(
+    service_manager::Connector* connector)
+    : connector_(connector) {}
+
+NewWindowClientProxy::~NewWindowClientProxy() {}
+
+void NewWindowClientProxy::NewTab() {
+  EnsureInterface();
+  client_->NewTab();
+}
+
+void NewWindowClientProxy::NewWindow(bool incognito) {
+  EnsureInterface();
+  client_->NewWindow(incognito);
+}
+
+void NewWindowClientProxy::OpenFileManager() {
+  EnsureInterface();
+  client_->OpenFileManager();
+}
+
+void NewWindowClientProxy::OpenCrosh() {
+  EnsureInterface();
+  client_->OpenCrosh();
+}
+
+void NewWindowClientProxy::OpenGetHelp() {
+  EnsureInterface();
+  client_->OpenGetHelp();
+}
+
+void NewWindowClientProxy::RestoreTab() {
+  EnsureInterface();
+  client_->RestoreTab();
+}
+
+void NewWindowClientProxy::ShowKeyboardOverlay() {
+  EnsureInterface();
+  client_->ShowKeyboardOverlay();
+}
+
+void NewWindowClientProxy::ShowTaskManager() {
+  EnsureInterface();
+  client_->ShowTaskManager();
+}
+
+void NewWindowClientProxy::OpenFeedbackPage() {
+  EnsureInterface();
+  client_->OpenFeedbackPage();
+}
+
+void NewWindowClientProxy::EnsureInterface() {
+  // |connector_| can be null in unit tests. We check this at first usage
+  // instead of during construction because a NewWindowClientProxy is always
+  // created and is then replaced with a mock in the unit tests.
+  DCHECK(connector_);
+
+  if (client_)
+    return;
+  connector_->ConnectToInterface("service:content_browser", &client_);
+  client_.set_connection_error_handler(base::Bind(
+      &NewWindowClientProxy::OnClientConnectionError, base::Unretained(this)));
+}
+
+void NewWindowClientProxy::OnClientConnectionError() {
+  client_.reset();
+}
+
+}  // namespace ash