Bug 1561717 part 2: Add "elem" suffix to reftests "contain-size-select-*", to avoid name collisions with other WPT tests, and add spec link. r=dbaron

Differential Revision: https://phabricator.services.mozilla.com/D36222

--HG--
rename : layout/reftests/w3c-css/submitted/contain/contain-size-select-001-ref.html => layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-001-ref.html
rename : layout/reftests/w3c-css/submitted/contain/contain-size-select-001.html => layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-001.html
rename : layout/reftests/w3c-css/submitted/contain/contain-size-select-002-ref.html => layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-002-ref.html
rename : layout/reftests/w3c-css/submitted/contain/contain-size-select-002.html => layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-002.html
extra : moz-landing-system : lando

layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-001.html

@@ -4,7 +4,8 @@
   <meta charset="utf-8">
   <title>CSS Test: 'contain: size' on select objects should cause them to be sized as if they have no contents.</title>
   <link rel="author" title="Morgan Rae Reschenberg" href="mailto:mreschenberg@berkeley.edu">
-  <link rel="match" href="contain-size-select-001-ref.html">
+  <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-size">
+  <link rel="match" href="contain-size-select-elem-001-ref.html">
   <style>
   select {
     contain: size;

layout/reftests/w3c-css/submitted/contain/contain-size-select-elem-002.html

@@ -4,7 +4,8 @@
   <meta charset="utf-8">
   <title>CSS Test: 'contain: size' on select objects should cause them to be sized as if they have no contents.</title>
   <link rel="author" title="Morgan Rae Reschenberg" href="mailto:mreschenberg@berkeley.edu">
-  <link rel="match" href="contain-size-select-002-ref.html">
+  <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-size">
+  <link rel="match" href="contain-size-select-elem-002-ref.html">
   <style>
   select {
     contain: size;

layout/reftests/w3c-css/submitted/contain/reftest.list

@@ -35,8 +35,8 @@ fuzzy-if(webrender&&winWidget,0-24,0-2) == contain-size-inline-flex-001.html con
 == contain-size-fieldset-002.html contain-size-fieldset-002-ref.html
 == contain-size-multicol-002.html contain-size-multicol-002-ref.html
 == contain-size-multicol-003.html contain-size-multicol-003-ref.html
-fails == contain-size-select-001.html contain-size-select-001-ref.html # bug 1476127
-fails == contain-size-select-002.html contain-size-select-002-ref.html # bug 1476127
+fails == contain-size-select-elem-001.html contain-size-select-elem-001-ref.html # bug 1476127
+fails == contain-size-select-elem-002.html contain-size-select-elem-002-ref.html # bug 1476127
 == contain-layout-overflow-001.html contain-layout-overflow-001-ref.html
 == contain-layout-overflow-002.html contain-layout-overflow-002-ref.html
 == contain-size-table-caption-001.html contain-size-table-caption-001-ref.html