[web-animations-1] Switch to using WebIDL definitions of promise algo…

…rithms

web-animations-1/Overview.bs

@@ -117,10 +117,14 @@ urlPrefix: https://heycam.github.io/webidl/#dfn-; type: dfn; spec: webidl
     text: thrown; url: throw
     text: convert ecmascript to idl value
 urlPrefix: https://heycam.github.io/webidl/; type: dfn; spec: webidl
+    text: a new promise
+    text: create a new resolved Promise; url: a-promise-resolved-with
     text: [EnforceRange]; url: EnforceRange
     text: es to dictionary
     text: es to DOMString; url: es-to-DOMString
     text: DOMString to es; url: DOMString-to-es
+    text: reject a promise; url: reject
+    text: resolve a promise; url: resolve
 urlPrefix: http://www.ecma-international.org/ecma-262/6.0/#sec-; type: dfn; spec: ecma-262
     text: code realms
     text: completion record specification type
@@ -132,8 +136,6 @@ urlPrefix: http://www.ecma-international.org/ecma-262/6.0/#sec-; type: dfn; spec
     text: IteratorValue
     text: Promise object; url: promise-objects
     text: Promise; url: promise-objects
-    text: PromiseCapability record; url: promisecapability-records
-    text: Promise.resolve; url: promise.resolve
     text: Type; url: ecmascript-data-types-and-values
     text: well known symbols
     text: [[DefineOwnProperty]]; url: ordinary-object-internal-methods-and-internal-slots-defineownproperty-p-desc
@@ -868,7 +870,8 @@ The procedure to <dfn>reset an animation's pending tasks</dfn> for
     promise</a> with a DOMException named "AbortError".
 1.  Let <var>animation</var>'s <a>current ready promise</a> be the result of
     <a lt="create a new resolved Promise">creating a new resolved Promise
-    object</a>.
+    object</a> with value <var>animation</var> in the <a>relevant Realm</a> of
+    <var>animation</var>.
 
 <h4 id="the-current-time-of-an-animation">The current time of an animation</h4>
 
@@ -1074,29 +1077,12 @@ following conditions are true:
 *   the animation is associated with a <a>timeline</a> that is not
     <a lt="inactive timeline">inactive</a>.
 
-<h4 id='promise-objects'>Promise objects</h4>
-
-<a>Promise objects</a> are defined by [[!ECMA-262]].
-
-To <dfn>resolve a Promise</dfn> with <var>value</var>,
-call the \[[Call]] internal \[[Resolve]] method on the <a>PromiseCapability
-record</a> for the promise, passing <code>undefined</code> as
-<var>thisArgument</var> and (<var>value</var>) as <var>argumentsList</var>.
-
-To <dfn>reject a Promise</dfn> with <var>reason</var>,
-call the \[[Call]] internal \[[Reject]] method on the <a>PromiseCapability
-record</a> for the promise, passing <code>undefined</code> as
-<var>thisArgument</var> and
-(<var>reason</var>) as <var>argumentsList</var>.
-
-To <dfn>create a new resolved Promise</dfn> with <var>value</var>, call
-<a>Promise.resolve</a>, passing <var>value</var> as <var ignore>x</var>.
-
 <h4 id='the-current-ready-promise'>The current ready promise</h4>
 
 Each <a>animation</a> has a <dfn>current ready promise</dfn>.
 The <a>current ready promise</a> is initially a resolved <a>Promise</a> created
-using the procedure to <a>create a new resolved Promise</a>.
+using the procedure to <a>create a new resolved Promise</a> with the animation
+itself as its value and created in the <a>relevant Realm</a> of the animation.
 
 The object is replaced with a new <a>Promise object</a> every time the animation
 queues a <a>pending play task</a> or a <a>pending pause task</a> when it
@@ -1190,8 +1176,8 @@ as CSS Animations [[CSS-ANIMATIONS-1]].
     let its [=start time=] be <a>unresolved</a>.
 
 1.  If <var>has pending ready promise</var> is false,
-    let <var>animation</var>'s <a>current ready promise</a> be a new
-    (pending) <a>Promise</a> object.
+    let <var>animation</var>'s <a>current ready promise</a> be
+    <a>a new promise</a> in the <a>relevant Realm</a> of <var>animation</var>.
 
 1.  Schedule a task to run as soon as <var>animation</var> is <a>ready</a>.
     The task shall perform the following steps:
@@ -1245,7 +1231,7 @@ as CSS Animations [[CSS-ANIMATIONS-1]].
 
         </div>
 
-    1.  <a lt="resolve a Promise">Resolve</a> <var>animation</var>'s <a>current
+    1.  <a lt="resolve a promise">Resolve</a> <var>animation</var>'s <a>current
         ready promise</a> with <var>animation</var>.
 
     1.  Run the procedure to <a>update an animation's finished state</a> for
@@ -1336,8 +1322,8 @@ follows:
 1.  If <var>animation</var> has a <a>pending play task</a>, cancel that task
     and let <var>has pending ready promise</var> be true.
 1.  If <var>has pending ready promise</var> is false,
-    set <var>animation</var>'s <a>current ready promise</a> to a new
-    (pending) <a>Promise</a> object.
+    set <var>animation</var>'s <a>current ready promise</a> to
+    <a>a new promise</a> in the <a>relevant Realm</a> of <var>animation</var>.
 1.  Schedule a task to be executed at the first possible moment after
     the user agent has performed any processing necessary to suspend
     the playback of
@@ -1443,7 +1429,7 @@ Each animation has a <dfn>current finished promise</dfn>.
 The <a>current finished promise</a> is initially a pending <a>Promise</a>
 object.
 
-The object is replaced with a new (pending) <a>Promise</a> object every time
+The object is replaced with a new <a>promise</a> every time
 the animation leaves the <a>finished play state</a>.
 
 <h4 id="updating-the-finished-state">Updating the finished state</h4>
@@ -1597,7 +1583,7 @@ follows:
 1.  If <var>current finished state</var> is false and
     <var>animation</var>'s <a>current finished promise</a> is already
     resolved, set <var>animation</var>'s <a>current finished promise</a> to
-    a new (pending) Promise object.
+    <a>a new promise</a> in the <a>relevant Realm</a> of <var>animation</var>.
 
 <div class="informative-bg">
 
@@ -1718,8 +1704,9 @@ as follows:
         <var>animation</var>.
     1.  <a lt="reject a Promise">Reject</a> the <a>current finished promise</a>
         with a DOMException named "AbortError".
-    1.  Let <a>current finished promise</a> be a new (pending) <a>Promise</a>
-        object.
+    1.  Let <a>current finished promise</a> be
+        <a>a new promise</a> in the <a>relevant Realm</a> of
+        <var>animation</var>.
     1.  <a lt="create an event">Create</a> an {{AnimationPlaybackEvent}},
         |cancelEvent|.
     1.  Set |cancelEvent|'s {{Event/type}} attribute to <a lt="cancel