[css-typed-om] Stub list-valued tests.

Currently we're just adding a TODO when we want to test a list-valued
property. It's probably easier if we stub that test function and then
implement it later.

Bug: 774887
Change-Id: Iab3cea915afbcc8490cacbd45e5632a18e7dece1
Reviewed-on: https://chromium-review.googlesource.com/981956Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#546067}

third_party/WebKit/LayoutTests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/animation-direction.html

@@ -13,8 +13,7 @@
 <script>
 'use strict';
 
-// FIXME: animation-direction is list-valued. Run list-valued tests here too.
-runPropertyTests('animation-direction', [
+runListValuedPropertyTests('animation-direction', [
   { syntax: 'normal' },
   { syntax: 'reverse' },
   { syntax: 'alternate-reverse' },

third_party/WebKit/LayoutTests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/background-image.html

@@ -13,8 +13,7 @@
 <script>
 'use strict';
 
-// FIXME: background-image is list-valued. Run list-valued tests here too.
-runPropertyTests('background-image', [
+runListValuedPropertyTests('background-image', [
   { syntax: 'none' },
   { syntax: '<image>' },
 ]);

third_party/WebKit/LayoutTests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/mask-image.html

@@ -13,8 +13,7 @@
 <script>
 'use strict';
 
-// FIXME: mask-image is list-valued. Run list-valued tests here too.
-runPropertyTests('mask-image', [
+runListValuedPropertyTests('mask-image', [
   { syntax: 'none' },
   { syntax: '<image>' },
 ]);

third_party/WebKit/LayoutTests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/resources/testsuite.js

@@ -378,6 +378,12 @@ function runPropertyTests(propertyName, testCases) {
   }
 }
 
+// Same as runPropertyTests but for list-valued properties.
+function runListValuedPropertyTests(propertyName, testCases) {
+  // TODO(https://crbug.com/545318): Run list-valued tests as well.
+  runPropertyTests(propertyName, testCases);
+}
+
 // Check that |propertyName| doesn't "support" examples in |testExamples|.
 // |testExamples| is a list of CSS string values. An "unsupported" value
 // doesn't have a corresponding Typed OM representation. It normalizes as

third_party/WebKit/LayoutTests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/transition-duration.html

@@ -12,8 +12,7 @@
 <script>
 'use strict';
 
-// FIXME: transition-duration is list-valued. Run list-valued tests here too.
-runPropertyTests('transition-duration', [
+runListValuedPropertyTests('transition-duration', [
   { syntax: '<time>' },
 ]);