Remove requirement to reject after document is inactive (#875)

Author: danyao

index.html

@@ -1234,9 +1234,6 @@ <h2>
               <li>Set |request|'s <a>payment-relevant browsing context</a>'s
               <a>payment request is showing</a> boolean to false.
               </li>
-              <li>Reject |acceptPromise| with an "<a>AbortError</a>"
-              <a>DOMException</a>.
-              </li>
             </ol>
           </li>
         </ol>
@@ -3172,20 +3169,19 @@ <h2>
           affords the end user the ability to retry accepting the payment
           request.
           </li>
-          <li data-tests=
-          "payment-response/rejects_if_not_active-manual.https.html">If
-          |document| stops being <a>fully active</a> while the user interface
-          is being shown, or no longer is by the time this step is reached,
-          then:
+          <li>
+            <span data-tests=
+            "payment-response/rejects_if_not_active-manual.https.html">If
+            |document| stops being <a>fully active</a> while the user interface
+            is being shown, or no longer is by the time this step is reached,
+            then:
+            </span>
             <ol>
               <li>Close down the user interface.
               </li>
               <li>Set |request|'s <a>payment-relevant browsing context</a>'s
               <a>payment request is showing</a> boolean to false.
               </li>
-              <li>Reject |retryPromise| with an "<a>AbortError</a>"
-              <a>DOMException</a>.
-              </li>
             </ol>
           </li>
           <li>Finally, when |retryPromise| settles, set
@@ -3490,9 +3486,6 @@ <h2>
               <li>Set |request|'s <a>payment-relevant browsing context</a>'s
               <a>payment request is showing</a> boolean to false.
               </li>
-              <li>Reject |promise| with an "<a>AbortError</a>"
-              <a>DOMException</a>.
-              </li>
             </ol>
           </li>
           <li>Otherwise: