[Presentation API] Resolve PresentationRequest::reconnect() with existing presentation connection i…

third_party/WebKit/Source/modules/presentation/ExistingPresentationConnectionCallbacks.cpp

+// Copyright 2015 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 "modules/presentation/ExistingPresentationConnectionCallbacks.h"
+
+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "core/dom/DOMException.h"
+#include "modules/presentation/PresentationConnection.h"
+#include "modules/presentation/PresentationError.h"
+#include "public/platform/modules/presentation/WebPresentationError.h"
+#include "wtf/PtrUtil.h"
+#include <memory>
+
+namespace blink {
+
+ExistingPresentationConnectionCallbacks::
+    ExistingPresentationConnectionCallbacks(ScriptPromiseResolver* resolver,
+                                            PresentationConnection* connection)
+    : m_resolver(resolver), m_connection(connection) {
+  DCHECK(m_resolver);
+  DCHECK(m_connection);
+}
+
+void ExistingPresentationConnectionCallbacks::onSuccess(
+    const WebPresentationSessionInfo& sessionInfo) {
+  if (!m_resolver->getExecutionContext() ||
+      m_resolver->getExecutionContext()->isContextDestroyed()) {
+    return;
+  }
+
+  if (m_connection->getState() == WebPresentationConnectionState::Closed)
+    m_connection->didChangeState(WebPresentationConnectionState::Connecting);
+
+  m_resolver->resolve(m_connection);
+}
+
+void ExistingPresentationConnectionCallbacks::onError(
+    const WebPresentationError& error) {
+  NOTREACHED();
+}
+
+}  // namespace blink