[css-grid] Migrate grid-automatic-minimum-for-auto-columns to WPT

Migrate this test out of web_tests/fast/css-grid-layout/ and into the
WPT-specific directory, adding links to the relevant specs and a test
assertion describing its purpose.

Bug: 1063749, 767015
Change-Id: Icdb180274b6d82ae02dc25461efa1b5819670195
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2151512
Commit-Queue: Henrique Ferreiro <hferreiro@igalia.com>
Reviewed-by: Manuel Rego <rego@igalia.com>
Cr-Commit-Position: refs/heads/master@{#760041}

third_party/blink/web_tests/fast/css-grid-layout/grid-automatic-minimum-for-auto-columns-expected.txt

-Check that min-width is honored when sizing auto columns.
-PASS window.getComputedStyle(gridAuto, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridAutoItemSmallerThanMinSize, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridMinMaxAutoAuto, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridMinMaxAutoMaxContent, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridMinMaxMinContentAuto, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridAutoMultipleItems, '').getPropertyValue('grid-template-columns') is "30px"
-PASS window.getComputedStyle(gridMinMaxAutoAutoMultipleItemsOneWithoutMinWidth, '').getPropertyValue('grid-template-columns') is "60px"
-PASS window.getComputedStyle(gridMinMaxAutoMaxContentMultipleItemsOneWithAutoMinWidth, '').getPropertyValue('grid-template-columns') is "80px"
-PASS window.getComputedStyle(gridAutoAndAutoFixedWidthChildren, '').getPropertyValue('grid-template-columns') is "200px 50px"
-
-
-Check that min-width is honored when sizing auto columns and spanning grid items.
-PASS window.getComputedStyle(gridAutoAndAutoOneSpanningOneNonSpannig, '').getPropertyValue('grid-template-columns') is "35px 15px"
-PASS window.getComputedStyle(gridAutoAndAutoOneSpanningMultipleNonSpanning, '').getPropertyValue('grid-template-columns') is "20px 40px"
-PASS window.getComputedStyle(gridAutoAndMinMaxAutoAutoOneSpanningOneNonSpanning, '').getPropertyValue('grid-template-columns') is "20px 50px"
-PASS window.getComputedStyle(gridAutoAndMinMaxAutoAutoMultipleSpanning, '').getPropertyValue('grid-template-columns') is "35px 35px"
-PASS window.getComputedStyle(gridMinMaxAutoMaxContentAndAutoOneSpanningMultipleNonSpanning, '').getPropertyValue('grid-template-columns') is "25px 65px"
-PASS window.getComputedStyle(gridMinMaxAutoMaxContentAndAutoMultipleSpanningMultipleNonSpanning, '').getPropertyValue('grid-template-columns') is "40px 50px"
-
-
-Check the interactions between width and min-width and auto tracks.
-PASS window.getComputedStyle(gridAutoWithFixedWidthChild, '').getPropertyValue('grid-template-columns') is "60px"
-PASS window.getComputedStyle(gridAutoWithFixedWidthChildAndMinWidth, '').getPropertyValue('grid-template-columns') is "60px"
-PASS window.getComputedStyle(gridAutoWithFixedWidthChildAndHigherMinWidth, '').getPropertyValue('grid-template-columns') is "90px"
-PASS window.getComputedStyle(gridAutoAndAutoOneSpanningFixedWidth, '').getPropertyValue('grid-template-columns') is "25px 25px"
-PASS window.getComputedStyle(gridAutoAndAutoOneSpanningFixedWidthAndMinWidth, '').getPropertyValue('grid-template-columns') is "30px 30px"
-PASS window.getComputedStyle(gridAutoAndAutoOneSpanningFixedWidthAndHigherMinWidth, '').getPropertyValue('grid-template-columns') is "35px 35px"
-
-
-Check that borders and paddings are considering when computing min sizes.
-PASS window.getComputedStyle(gridAutoFixedMinWidthWithBorder, '').getPropertyValue('grid-template-columns') is "50px"
-PASS window.getComputedStyle(gridAutoFixedMinWidthWithPadding, '').getPropertyValue('grid-template-columns') is "56px"
-PASS window.getComputedStyle(gridAutoFixedMinWidthWithBorderAndPadding, '').getPropertyValue('grid-template-columns') is "66px"
-PASS window.getComputedStyle(gridAutoAutoMinWidthWithBorder, '').getPropertyValue('grid-template-columns') is "40px"
-PASS window.getComputedStyle(gridAutoAutoMinWidthWithPadding, '').getPropertyValue('grid-template-columns') is "46px"
-PASS window.getComputedStyle(gridAutoAutoMinWidthWithBorderAndPadding, '').getPropertyValue('grid-template-columns') is "56px"
-PASS window.getComputedStyle(gridAutoMaxContentMinWidthWithBorder, '').getPropertyValue('grid-template-columns') is "90px"
-PASS window.getComputedStyle(gridAutoMaxContentMinWidthWithPadding, '').getPropertyValue('grid-template-columns') is "96px"
-PASS window.getComputedStyle(gridAutoMaxContentMinWidthWithBorderAndPadding, '').getPropertyValue('grid-template-columns') is "106px"
-PASS successfullyParsed is true
-
-TEST COMPLETE
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