Editorial: Use settings object definition. (#330)

* Use settings object definition.
* Relevant settings object not, current
* relevant to what? this

Author: inexorabletash

index.bs

@@ -2201,7 +2201,9 @@ when invoked, must run these steps:
 
 1. If |version| is 0 (zero), [=throw=] a [=TypeError=].
 
-1. Let |origin| be the [=/origin=] of the global scope used to access [=/this=].
+1. Let |environment| be [=/this=]'s [=/relevant settings object=].
+
+1. Let |origin| be |environment|'s [=environment settings object/origin=].
 
 1. If |origin| is an [=opaque origin=], [=throw=] a
     "{{SecurityError}}" {{DOMException}} and abort these steps.
@@ -2271,7 +2273,9 @@ when invoked, must run these steps:
 The <dfn method for=IDBFactory>deleteDatabase(|name|)</dfn> method,
 when invoked, must run these steps:
 
-1. Let |origin| be the [=/origin=] of the global scope used to access [=/this=].
+1. Let |environment| be [=/this=]'s [=/relevant settings object=].
+
+1. Let |origin| be |environment|'s [=environment settings object/origin=].
 
 1. If |origin| is an [=opaque origin=], [=throw=] a
     "{{SecurityError}}" {{DOMException}} and abort these steps.
@@ -2326,7 +2330,9 @@ when invoked, must run these steps:
 The <dfn method for=IDBFactory>databases()</dfn> method,
 when invoked, must run these steps:
 
-1. Let |origin| be the [=/origin=] of the global scope used to access [=/this=].
+1. Let |environment| be [=/this=]'s [=/relevant settings object=].
+
+1. Let |origin| be |environment|'s [=environment settings object/origin=].
 
 1. If |origin| is an [=opaque origin=],
     then return [=/a promise rejected with=] a "{{SecurityError}}" {{DOMException}}.