Check multiple possible values for 'image-rendering'

Allow checking for an array of values rather than a single value. This
clears up the situation where different UAs support different (and
disjoint) sets of values for a property. In this case 'image-rendering'.

Also adjust assertPresentationAttributeIsNotSupported(...) such that
the assert description makes more sense by adding a negation.

Bug: 1056055
Change-Id: Ibe5cddb09f242754f02aa96b4bc8571f2aabecf1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2082557Reviewed-by: Stephen Chenney <schenney@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#746056}

third_party/blink/web_tests/external/wpt/svg/styling/presentation-attributes-irrelevant-expected.txt

 This is a testharness.js-based test.
-Found 58 tests; 54 PASS, 4 FAIL, 0 TIMEOUT, 0 NOTRUN.
+Found 58 tests; 55 PASS, 3 FAIL, 0 TIMEOUT, 0 NOTRUN.
 PASS alignment-baseline presentation attribute supported on an irrelevant element
 PASS baseline-shift presentation attribute supported on an irrelevant element
 PASS clip-path presentation attribute supported on an irrelevant element
@@ -24,7 +24,7 @@ PASS font-stretch presentation attribute supported on an irrelevant element
 PASS font-style presentation attribute supported on an irrelevant element
 PASS font-variant presentation attribute supported on an irrelevant element
 PASS font-weight presentation attribute supported on an irrelevant element
-FAIL image-rendering presentation attribute supported on an irrelevant element assert_true: Presentation attribute image-rendering="optimizeSpeed" should be supported on path element expected true got false
+PASS image-rendering presentation attribute supported on an irrelevant element
 PASS letter-spacing presentation attribute supported on an irrelevant element
 PASS lighting-color presentation attribute supported on an irrelevant element
 PASS marker-end presentation attribute supported on an irrelevant element

third_party/blink/web_tests/external/wpt/svg/styling/presentation-attributes-relevant-expected.txt

 This is a testharness.js-based test.
-Found 69 tests; 65 PASS, 4 FAIL, 0 TIMEOUT, 0 NOTRUN.
+Found 69 tests; 66 PASS, 3 FAIL, 0 TIMEOUT, 0 NOTRUN.
 PASS alignment-baseline presentation attribute supported on a relevant element
 PASS baseline-shift presentation attribute supported on a relevant element
 PASS clip-path presentation attribute supported on a relevant element
@@ -28,7 +28,7 @@ PASS font-style presentation attribute supported on a relevant element
 PASS font-variant presentation attribute supported on a relevant element
 PASS font-weight presentation attribute supported on a relevant element
 PASS height presentation attribute supported on a relevant element
-FAIL image-rendering presentation attribute supported on a relevant element assert_true: Presentation attribute image-rendering="optimizeSpeed" should be supported on image element expected true got false
+PASS image-rendering presentation attribute supported on a relevant element
 PASS letter-spacing presentation attribute supported on a relevant element
 PASS lighting-color presentation attribute supported on a relevant element
 PASS marker-end presentation attribute supported on a relevant element

third_party/blink/web_tests/external/wpt/svg/styling/presentation-attributes-special-cases-expected.txt

@@ -19,7 +19,7 @@ PASS d presentation attribute not supported on other elements
 PASS fill presentation attribute not supported on animate
 PASS fill presentation attribute not supported on animateMotion
 PASS fill presentation attribute not supported on animateTransform
-FAIL fill presentation attribute not supported on discard assert_false: Presentation attribute fill="blue" should be supported on discard element expected false got true
+FAIL fill presentation attribute not supported on discard assert_false: Presentation attribute fill="blue" should not be supported on discard element expected false got true
 PASS fill presentation attribute not supported on set
 PASS transform presentation attribute supported on g
 PASS patternTransform presentation attribute supported on pattern

third_party/blink/web_tests/external/wpt/svg/styling/presentation-attributes-unknown-expected.txt

 This is a testharness.js-based test.
-Found 58 tests; 54 PASS, 4 FAIL, 0 TIMEOUT, 0 NOTRUN.
+Found 58 tests; 55 PASS, 3 FAIL, 0 TIMEOUT, 0 NOTRUN.
 PASS alignment-baseline presentation attribute supported on an unknown SVG element
 PASS baseline-shift presentation attribute supported on an unknown SVG element
 PASS clip-path presentation attribute supported on an unknown SVG element
@@ -24,7 +24,7 @@ PASS font-stretch presentation attribute supported on an unknown SVG element
 PASS font-style presentation attribute supported on an unknown SVG element
 PASS font-variant presentation attribute supported on an unknown SVG element
 PASS font-weight presentation attribute supported on an unknown SVG element
-FAIL image-rendering presentation attribute supported on an unknown SVG element assert_true: Presentation attribute image-rendering="optimizeSpeed" should be supported on unknown element expected true got false
+PASS image-rendering presentation attribute supported on an unknown SVG element
 PASS letter-spacing presentation attribute supported on an unknown SVG element
 PASS lighting-color presentation attribute supported on an unknown SVG element
 PASS marker-end presentation attribute supported on an unknown SVG element

third_party/blink/web_tests/external/wpt/svg/styling/presentation-attributes.js

@@ -145,7 +145,7 @@ const PROPERTIES = {
     irrelevantElement: null,
   },
   "image-rendering": {
-    value: "optimizeSpeed",
+    value: ["optimizeSpeed", "pixelated"],
     relevantElement: "image",
     irrelevantElement: "path",
   },
@@ -361,17 +361,25 @@ function presentationAttributeIsSupported(element, attribute, value, property) {
   return propertyValueBefore != propertyValueAfter;
 }
 
-function assertPresentationAttributeIsSupported(element, attribute, value, property) {
+function assertPresentationAttributeIsSupported(element, attribute, values, property) {
+  if (typeof values === 'string')
+    values = [values];
+  let supported = values.some(
+    value => presentationAttributeIsSupported(element, attribute, value, property));
   assert_true(
-    presentationAttributeIsSupported(element, attribute, value, property),
-    `Presentation attribute ${attribute}="${value}" should be supported on ${element} element`
+    supported,
+    `Presentation attribute ${attribute}="${values.join(" | ")}" should be supported on ${element} element`
   );
 }
 
-function assertPresentationAttributeIsNotSupported(element, attribute, value, property) {
+function assertPresentationAttributeIsNotSupported(element, attribute, values, property) {
+  if (typeof values === 'string')
+    values = [values];
+  let supported = values.some(
+    value => presentationAttributeIsSupported(element, attribute, value, property));
   assert_false(
-    presentationAttributeIsSupported(element, attribute, value, property),
-    `Presentation attribute ${attribute}="${value}" should be supported on ${element} element`
+    supported,
+    `Presentation attribute ${attribute}="${values.join(" | ")}" should not be supported on ${element} element`
   );
 }