Update QuotaExceededError usage

QuotaExceededError is graduating from being a DOMException name into a new error class, in whatwg/webidl#1465. Update creation sites to reflect this.

For now, the quota and requested properties are left at their default (null). Future work could include setting them in an informative fashion.

Author: domenic

docs/index.bs

@@ -2310,7 +2310,7 @@ spec: storage; urlPrefix: https://storage.spec.whatwg.org/
                     1. Resolve |promise| with a new {{Cache}} object that represents |value|.
                     1. Abort these steps.
             1. Let |cache| be a new [=request response list=].
-            1. [=map/Set=] the [=relevant name to cache map=][|cacheName|] to |cache|. If this cache write operation failed due to exceeding the granted quota limit, reject |promise| with a "{{QuotaExceededError}}" {{DOMException}} and abort these steps.
+            1. [=map/Set=] the [=relevant name to cache map=][|cacheName|] to |cache|. If this cache write operation failed due to exceeding the granted quota limit, reject |promise| with a {{QuotaExceededError}} and abort these steps.
             1. Resolve |promise| with a new {{Cache}} object that represents |cache|.
         1. Return |promise|.
     </section>
@@ -4071,7 +4071,7 @@ spec: storage; urlPrefix: https://storage.spec.whatwg.org/
                   1. [=list/For each=] |requestResponse| of |requestResponses|:
                       1. [=list/Remove=] the [=list/item=] whose value matches |requestResponse| from |cache|.
                   1. [=list/Append=] |operation|'s [=cache batch operation/request=]/|operation|'s [=cache batch operation/response=] to |cache|.
-                  1. If the cache write operation in the previous two steps failed due to exceeding the granted quota limit, <a>throw</a> a "{{QuotaExceededError}}" {{DOMException}}.
+                  1. If the cache write operation in the previous two steps failed due to exceeding the granted quota limit, <a>throw</a> a {{QuotaExceededError}}.
                   1. [=list/Append=] |operation|'s [=cache batch operation/request=]/|operation|'s [=cache batch operation/response=] to |addedItems|.
               1. [=Append=] |operation|'s [=cache batch operation/request=]/|operation|'s [=cache batch operation/response=] to |resultList|.
           1. Return |resultList|.