Bug 1538129 [wpt PR 15982] - WIP Canvas 2D/WebGL context: s/lowLatenc…

…y/desynchronized/, a=testonly

Automatic update from web-platform-tests
WIP Canvas 2D/WebGL context: s/lowLatency/desynchronized/

This CL renames s/lowLatency/desynchronized/ on web-exposed parts
(s/low_latency/desynchronized/ internally) following [1,2] PRs
(issue [3]), and extends wpt getContextAttributes.html.

[1] whatwg/html#4360
[2] KhronosGroup/WebGL#2753
[3] whatwg/html#4087

Bug: 944199
Change-Id: Ic9d7bd6165f9dc9536613dc63e77b86b8ec42f7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1532920
Reviewed-by: Philip Jägenstedt <foolipchromium.org>
Commit-Queue: Miguel Casas <mcasaschromium.org>
Cr-Commit-Position: refs/heads/master{#643323}

--

wpt-commits: 02e61522099b874a0075d058f89b9f549563c6dc
wpt-pr: 15982

UltraBlame original commit: e67259837e8158c2f585ec79fdd5355eacadcc8b

testing/web-platform/tests/2dcontext/context-attributes/getContextAttributes.html

@@ -59,6 +59,9 @@
 alpha
 :
 true
+desynchronized
+:
+false
 }
 }
 {
@@ -115,6 +118,60 @@
 false
 }
 }
+{
+testDescription
+:
+"
+Test
+context
+creation
+attributes
+desynchronized
+:
+true
+"
+canvasContextAttributes
+:
+{
+desynchronized
+:
+true
+}
+expectedContextAttributes
+:
+{
+desynchronized
+:
+true
+}
+}
+{
+testDescription
+:
+"
+Test
+context
+creation
+attributes
+desynchronized
+:
+false
+"
+canvasContextAttributes
+:
+{
+desynchronized
+:
+false
+}
+expectedContextAttributes
+:
+{
+desynchronized
+:
+false
+}
+}
 ]
 ;
 function
@@ -168,6 +225,19 @@
 (
 )
 ;
+if
+(
+testScenario
+.
+expectedContextAttributes
+.
+alpha
+!
+=
+=
+undefined
+)
+{
 assert_equals
 (
 contextAttributes
@@ -181,6 +251,33 @@
 )
 ;
 }
+if
+(
+testScenario
+.
+expectedContextAttributes
+.
+desynchronized
+!
+=
+=
+undefined
+)
+{
+assert_equals
+(
+contextAttributes
+.
+desynchronized
+testScenario
+.
+expectedContextAttributes
+.
+desynchronized
+)
+;
+}
+}
 testScenario
 .
 testDescription