[Presentation API] Allow PresentationConnection state change to "Connecting"

third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js

Index: third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
diff --git a/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js b/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
index 790bba54640068ec5d79729cf1d15bbfcbd931b9..3ffc27b999359c6ad5d03987b458af9e380d7fdd 100644
--- a/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
+++ b/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
@@ -10,17 +10,21 @@ let presentationServiceMock = loadMojoModules(
       'third_party/WebKit/public/platform/modules/presentation/presentation.mojom',
       'mojo/public/js/bindings',
     ]).then(mojo => {
-      let [ presentationService, bindings ] = mojo.modules;
+      let [ presentation, bindings ] = mojo.modules;
 
       class PresentationServiceMock {
         constructor(interfaceProvider) {
           interfaceProvider.addInterfaceOverrideForTesting(
-              presentationService.PresentationService.name,
+              presentation.PresentationService.name,
               handle => this.bindingSet_.addBinding(this, handle));
           this.interfaceProvider_ = interfaceProvider;
           this.pendingResponse_ = null;
           this.bindingSet_ = new bindings.BindingSet(
-              presentationService.PresentationService);
+              presentation.PresentationService);
+        }
+
+        setClient(client) {
+          this.client_ = client;
         }
 
         startSession(urls) {
@@ -36,6 +40,14 @@ let presentationServiceMock = loadMojoModules(
               error: null,
           });
         }
+
+        closeConnection(url, id) {
+          this.client_.onConnectionClosed(
+            { url: url, id: id },
+            presentation.PresentationConnectionCloseReason.CLOSED,
+            ''
+          );
+        }
       }
 
       return new PresentationServiceMock(mojo.frameInterfaces);