Revert of [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 eee573bdd50411abd5d3bfece1382dd3f850e1b0..3db3d1ea3ca4bddcb83bb9f1701627cd94f5f5a6 100644
--- a/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
+++ b/third_party/WebKit/LayoutTests/presentation/resources/presentation-service-mock.js
@@ -4,12 +4,13 @@
 
 "use strict";
 
-const presentationServiceMock =
-    loadMojoModules('presentationServiceMock', [
+let presentationServiceMock = loadMojoModules(
+    'presentationServiceMock',
+    [
       'third_party/WebKit/public/platform/modules/presentation/presentation.mojom',
       'mojo/public/js/bindings',
     ]).then(mojo => {
-      const [presentationService, bindings] = mojo.modules;
+      let [ presentationService, bindings ] = mojo.modules;
 
       class PresentationServiceMock {
         constructor(interfaceProvider) {
@@ -21,8 +22,6 @@
           this.bindingSet_ = new bindings.BindingSet(
               presentationService.PresentationService);
         }
-
-        setClient(client) { this.client_ = client; }
 
         startSession(urls) {
           return Promise.resolve({
@@ -37,12 +36,6 @@
               error: null,
           });
         }
-
-        closeConnection(url, id) {
-          this.client_.onConnectionClosed(
-              {url: url, id: id},
-              presentationService.PresentationConnectionCloseReason.CLOSED, '');
-        }
       }
 
       return new PresentationServiceMock(mojo.frameInterfaces);
@@ -54,9 +47,9 @@
   if (!('eventSender' in window))
     return;
 
-  const boundingRect = button.getBoundingClientRect();
-  const x = boundingRect.left + boundingRect.width / 2;
-  const y = boundingRect.top + boundingRect.height / 2;
+  var boundingRect = button.getBoundingClientRect();
+  var x = boundingRect.left + boundingRect.width / 2;
+  var y = boundingRect.top + boundingRect.height / 2;
 
   eventSender.mouseMoveTo(x, y);
   eventSender.mouseDown();