Use current global object for ServiceWorkerGlobalScope check

Using entry global object (equal to entry settings object’s global
object) is not needed here and we generally try to phase out entry.

notifications.bs

@@ -715,9 +715,8 @@ corresponding <a>notification</a> is in the
 these steps:
 
 <ol>
-  <li><p>If the <a>entry settings object</a>'s
-  <a for="environment settings object">global object</a> is a {{ServiceWorkerGlobalScope}} object,
-  then <a>throw</a> a <code>TypeError</code> exception.
+  <li><p>If the <a>current global object</a> is a {{ServiceWorkerGlobalScope}} object, then
+  <a>throw</a> a <code>TypeError</code> exception.
 
   <li><p>Let <var>notification</var> be the result of
   <a lt="create a notification">creating a notification</a> given

notifications.html

@@ -581,8 +581,7 @@ <h3 class="heading settled" data-level="3.2" id="constructors"><span class="secn
 these steps: </p>
    <ol>
     <li>
-     <p>If the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#entry-settings-object">entry settings object</a>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global">global object</a> is a <code class="idl"><a data-link-type="idl" href="https://w3c.github.io/ServiceWorker/#serviceworkerglobalscope">ServiceWorkerGlobalScope</a></code> object,
-  then <a data-link-type="dfn" href="https://heycam.github.io/webidl/#dfn-throw">throw</a> a <code>TypeError</code> exception. </p>
+     <p>If the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#current-global-object">current global object</a> is a <code class="idl"><a data-link-type="idl" href="https://w3c.github.io/ServiceWorker/#serviceworkerglobalscope">ServiceWorkerGlobalScope</a></code> object, then <a data-link-type="dfn" href="https://heycam.github.io/webidl/#dfn-throw">throw</a> a <code>TypeError</code> exception. </p>
     <li>
      <p>Let <var>notification</var> be the result of <a data-link-type="dfn" href="#create-a-notification">creating a notification</a> given <var>title</var> and <var>options</var>. Rethrow any exceptions. </p>
     <li>
@@ -1131,9 +1130,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
     <ul>
      <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#eventhandler">EventHandler</a>
      <li><a href="https://html.spec.whatwg.org/multipage/browsers.html#browsing-context">browsing context</a>
+     <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#current-global-object">current global object</a>
      <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handlers">event handler</a>
      <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-event-type">event handler event type</a>
-     <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global">global object</a>
      <li><a href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel">in parallel</a>
      <li><a href="https://html.spec.whatwg.org/multipage/browsers.html#concept-origin">origin</a>
      <li><a href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin">origin <small>(for environment settings object)</small></a>