Bug 1859078 [wpt PR 42548] - url: Implement URL.canParse., a=testonly

Automatic update from web-platform-tests
url: Implement URL.canParse.

The WPT is adjusted slightly since it currently exercises behavior
it was presumably not intended to -- namely, the quirk we have on
Windows where URLs which begin with a single letter and a colon are
interpreted as file URLs relative to the given drive letter.

The particulars of URL parsing are adequately tested elsewhere, and
this test serves to demonstrate that URL.canParse(...) behaves the
same way that new URL(...) does.

Bug: 1425839
Change-Id: I13c425c1eaea791da2ccd2a1486112b5c2d6ad0b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4936216
Reviewed-by: Domenic Denicola <[email protected]>
Commit-Queue: Jeremy Roman <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1210014}

--

wpt-commits: c2d7e70b52cbd9a5b938aa32f37078d7a71e0b21
wpt-pr: 42548

testing/web-platform/tests/url/url-statics-canparse.any.js

@@ -6,23 +6,23 @@
     "expected": false
   },
   {
-    "url": "a:b",
+    "url": "aaa:b",
     "base": undefined,
     "expected": true
   },
   {
     "url": undefined,
-    "base": "a:b",
+    "base": "aaa:b",
     "expected": false
   },
   {
-    "url": "a:/b",
+    "url": "aaa:/b",
     "base": undefined,
     "expected": true
   },
   {
     "url": undefined,
-    "base": "a:/b",
+    "base": "aaa:/b",
     "expected": true
   },
   {