Bug 1860922 [wpt PR 41993] - [Async Clipboard API] Add supports metho…

…d to async clipboard API., a=testonly

Automatic update from web-platform-tests
[Async Clipboard API] Add supports method to async clipboard API.

In this change we are adding a new static method `supports` to the
ClipboardItem interface to help web authors detect clipboard format
types that are supported by Chromium.
Github Issue: w3c/clipboard-apis#170
Spec: w3c/clipboard-apis#192
w3c/clipboard-apis#195
I2S: https://groups.google.com/a/chromium.org/g/blink-dev/c/pjpN9Lwv5Tk/m/KrAZRbdwAQAJ?utm_medium=email&utm_source=footer&pli=1

Bug: 1483026, 1490635

Change-Id: Ief7c0786833548d2fb51215cefbc39e5930af875
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4865377
Reviewed-by: Kent Tamura <tkentchromium.org>
Commit-Queue: Anupam Snigdha <snianumicrosoft.com>
Reviewed-by: Evan Stade <estadechromium.org>
Cr-Commit-Position: refs/heads/main{#1214477}

--

wpt-commits: d1bd5741a6ec790fbec6e6d69158178d26f65269
wpt-pr: 41993

UltraBlame original commit: 1603ba63e55624bd159b523ea1c7430df469e647

testing/web-platform/tests/clipboard-apis/clipboard-item.https.html

@@ -1026,6 +1026,192 @@
 "
 )
 ;
+promise_test
+(
+async
+(
+)
+=
+>
+{
+assert_true
+(
+ClipboardItem
+.
+supports
+(
+'
+text
+/
+plain
+'
+)
+)
+;
+assert_true
+(
+ClipboardItem
+.
+supports
+(
+'
+text
+/
+html
+'
+)
+)
+;
+assert_true
+(
+ClipboardItem
+.
+supports
+(
+'
+image
+/
+png
+'
+)
+)
+;
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+web
+'
+)
+)
+;
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+web
+'
+)
+)
+;
+/
+/
+without
+space
+.
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+web
+foo
+'
+)
+)
+;
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+foo
+/
+bar
+'
+)
+)
+;
+assert_true
+(
+ClipboardItem
+.
+supports
+(
+'
+web
+foo
+/
+bar
+'
+)
+)
+;
+assert_true
+(
+ClipboardItem
+.
+supports
+(
+'
+web
+text
+/
+html
+'
+)
+)
+;
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+image
+/
+svg
++
+xml
+'
+)
+)
+;
+assert_false
+(
+ClipboardItem
+.
+supports
+(
+'
+not
+a
+/
+real
+type
+'
+)
+)
+;
+}
+"
+supports
+(
+DOMString
+)
+returns
+true
+for
+types
+that
+are
+supported
+false
+otherwise
+"
+)
+;
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