Update navigator.services API to use the new services.onconnect event [1/3].

Source/modules/navigatorconnect/AcceptConnectionObserver.h

Index: Source/modules/navigatorconnect/AcceptConnectionObserver.h
diff --git a/Source/modules/navigatorconnect/AcceptConnectionObserver.h b/Source/modules/navigatorconnect/AcceptConnectionObserver.h
index 187ab3d184ded9f815a4c0fbab2c0316b8f2ae6e..fa4bd393a4f2b75385d52e2e582320c24c4c1e97 100644
--- a/Source/modules/navigatorconnect/AcceptConnectionObserver.h
+++ b/Source/modules/navigatorconnect/AcceptConnectionObserver.h
@@ -5,9 +5,12 @@
 #ifndef AcceptConnectionObserver_h
 #define AcceptConnectionObserver_h
 
+#include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "modules/ModulesExport.h"
+#include "modules/navigatorconnect/ServicePortCollection.h"
 #include "platform/heap/Handle.h"
+#include "public/platform/modules/navigator_services/WebServicePort.h"
 
 namespace blink {
 
@@ -24,19 +27,25 @@ class MODULES_EXPORT AcceptConnectionObserver final : public GarbageCollectedFin
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(AcceptConnectionObserver);
 public:
     static AcceptConnectionObserver* create(ExecutionContext*, int eventID);
+    static AcceptConnectionObserver* create(ServicePortCollection*, PassOwnPtr<WebServicePortConnectEventCallbacks>, WebServicePortID, const KURL& targetURL);
 
     void contextDestroyed() override;
 
     // Must be called after dispatching the event. Will cause the connection to
-    // be rejected if no call to acceptConnection was made.
+    // be rejected if no call to acceptConnection or respondWith was made.
     void didDispatchEvent();
 
     // Observes the promise and delays calling didHandleCrossOriginConnectEvent()
     // until the given promise is resolved or rejected.
     void acceptConnection(ScriptState*, ScriptPromise, ExceptionState&);
 
-    void connectionWasRejected();
-    void connectionWasAccepted(const ScriptValue&);
+    // Observes the promise and delays calling didHandleServicePortConnectEvent()
+    // until the given promise is resolved or rejected. Returns a promise that
+    // resolves to a ServicePort when the connection is accepted.
+    ScriptPromise respondWith(ScriptState*, ScriptPromise, ExceptionState&);
+
+    void responseWasRejected();
+    void responseWasResolved(const ScriptValue&);
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -44,8 +53,14 @@ private:
     class ThenFunction;
 
     AcceptConnectionObserver(ExecutionContext*, int eventID);
+    AcceptConnectionObserver(ServicePortCollection*, PassOwnPtr<WebServicePortConnectEventCallbacks>, WebServicePortID, const KURL& targetURL);
 
     int m_eventID;
+    OwnPtr<WebServicePortConnectEventCallbacks> m_callbacks;
+    Member<ServicePortCollection> m_collection;
+    WebServicePortID m_portID;
+    KURL m_targetURL;
+    RefPtrWillBeMember<ScriptPromiseResolver> m_resolver;
 
     enum State { Initial, Pending, Done };
     State m_state;