Enable MetaColorScheme and CSSColorScheme flags.

Intent to ship thread:

https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/-_0REgUR-yY

Bug: 939811, 925935
Change-Id: I00e1b7ffc162b2b226db1a722391a61a5386cb51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2027328Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Chris Harrelson <chrishtr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736650}

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -416,6 +416,7 @@
       // Support for the CSS color-scheme property from the css-color-adjust spec.
       // https://drafts.csswg.org/css-color-adjust/#color-scheme-prop
       name: "CSSColorScheme",
+      status: "stable",
     },
     {
       // When the color-scheme is supported via the CSS color-scheme property
@@ -1054,6 +1055,7 @@
     // https://drafts.csswg.org/css-color-adjust/#color-scheme-meta
     {
       name: "MetaColorScheme",
+      status: "stable",
     },
     // This is enabled by default on Windows only. The only part that's
     // "experimental" is the support on other platforms.

third_party/blink/web_tests/external/wpt/css/css-color-adjust/inheritance-expected.txt

-This is a testharness.js-based test.
-FAIL Property color-scheme has initial value normal assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme inherits assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-attribute-changes-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme initially 'dark'. assert_equals: expected (string) "dark" but got (undefined) undefined
-FAIL Removed name attribute from meta color-scheme. assert_equals: expected (string) "normal" but got (undefined) undefined
-FAIL Set meta name to color-scheme. assert_equals: expected (string) "dark" but got (undefined) undefined
-FAIL Set content attribute of meta color-scheme to empty string. assert_equals: expected (string) "normal" but got (undefined) undefined
-FAIL Set content attribute of meta color-scheme to an invalid value. assert_equals: expected (string) "normal" but got (undefined) undefined
-FAIL Set content attribute of meta color-scheme to 'light'. assert_equals: expected (string) "light" but got (undefined) undefined
-FAIL Removed the content attribute of meta color-scheme. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-empty-content-value-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme with empty content attribute has no effect. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-first-valid-applies-expected.txt

-This is a testharness.js-based test.
-FAIL Tree order decides which meta color-scheme applies. assert_equals: expected (string) "dark" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-insert-expected.txt

-This is a testharness.js-based test.
-FAIL Initial color-scheme assert_equals: expected (string) "normal" but got (undefined) undefined
-FAIL Inserted meta color-scheme applies assert_equals: expected (string) "light" but got (undefined) undefined
-FAIL Inserted meta color-scheme before existing in head applies assert_equals: expected (string) "dark" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-no-content-value-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme without content attribute has no effect. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-presentational-hint-expected.txt

-This is a testharness.js-based test.
-FAIL Author origin style rule overrides meta color-scheme. assert_equals: expected (string) "light" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-remove-expected.txt

-This is a testharness.js-based test.
-FAIL First meta applies. assert_equals: expected (string) "dark" but got (undefined) undefined
-FAIL Second meta applies after first one is removed. assert_equals: expected (string) "light" but got (undefined) undefined
-FAIL Initial color-scheme with both meta elements removed. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-remove-head-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme applies. assert_equals: expected (string) "dark" but got (undefined) undefined
-FAIL Initial value after removing head including meta color-scheme. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-single-value-in-body-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme in body does not apply. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-single-value-in-head-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme in head applies. assert_equals: expected (string) "dark" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/meta/meta-color-scheme-single-value-in-shadow-tree-expected.txt

-This is a testharness.js-based test.
-FAIL Meta color-scheme in shadow tree does not apply. assert_equals: expected (string) "normal" but got (undefined) undefined
-Harness: the test ran to completion.
-

third_party/blink/web_tests/external/wpt/css/css-color-adjust/parsing/color-scheme-computed-expected.txt

 This is a testharness.js-based test.
-FAIL Property color-scheme value 'normal' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'light dark' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'dark light' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'light unknown' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'only light' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'light light' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'light only' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'none' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'initial' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'inherit' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'unset' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
-FAIL Property color-scheme value 'revert' assert_true: color-scheme doesn't seem to be supported in the computed style expected true got false
+PASS Property color-scheme value 'normal'
+PASS Property color-scheme value 'light dark'
+PASS Property color-scheme value 'dark light'
+PASS Property color-scheme value 'light unknown'
+PASS Property color-scheme value 'only light'
+PASS Property color-scheme value 'light light'
+PASS Property color-scheme value 'light only'
+PASS Property color-scheme value 'none'
+PASS Property color-scheme value 'initial'
+PASS Property color-scheme value 'inherit'
+PASS Property color-scheme value 'unset'
+FAIL Property color-scheme value 'revert' assert_true: 'revert' is a supported value for color-scheme. expected true got false
 Harness: the test ran to completion.
 

third_party/blink/web_tests/external/wpt/css/css-color-adjust/parsing/color-scheme-valid-expected.txt

 This is a testharness.js-based test.
-FAIL e.style['color-scheme'] = "normal" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "dark" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light dark" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "dark light" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "only light" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light only" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light light" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "dark dark" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light purple" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "purple dark interesting" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "none" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "light none" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "inherit" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "initial" should set the property value assert_not_equals: property should be set got disallowed value ""
-FAIL e.style['color-scheme'] = "unset" should set the property value assert_not_equals: property should be set got disallowed value ""
+PASS e.style['color-scheme'] = "normal" should set the property value
+PASS e.style['color-scheme'] = "light" should set the property value
+PASS e.style['color-scheme'] = "dark" should set the property value
+PASS e.style['color-scheme'] = "light dark" should set the property value
+PASS e.style['color-scheme'] = "dark light" should set the property value
+PASS e.style['color-scheme'] = "only light" should set the property value
+PASS e.style['color-scheme'] = "light only" should set the property value
+PASS e.style['color-scheme'] = "light light" should set the property value
+PASS e.style['color-scheme'] = "dark dark" should set the property value
+PASS e.style['color-scheme'] = "light purple" should set the property value
+PASS e.style['color-scheme'] = "purple dark interesting" should set the property value
+PASS e.style['color-scheme'] = "none" should set the property value
+PASS e.style['color-scheme'] = "light none" should set the property value
+PASS e.style['color-scheme'] = "inherit" should set the property value
+PASS e.style['color-scheme'] = "initial" should set the property value
+PASS e.style['color-scheme'] = "unset" should set the property value
 FAIL e.style['color-scheme'] = "revert" should set the property value assert_not_equals: property should be set got disallowed value ""
 Harness: the test ran to completion.
 

third_party/blink/web_tests/virtual/stable/webexposed/css-properties-as-js-properties-expected.txt

@@ -99,6 +99,7 @@ color
 colorInterpolation
 colorInterpolationFilters
 colorRendering
+colorScheme
 columnCount
 columnFill
 columnGap

third_party/blink/web_tests/virtual/stable/webexposed/css-property-listing-expected.txt

@@ -137,6 +137,7 @@ All changes to this list should go through Blink's feature review process: http:
     color-interpolation
     color-interpolation-filters
     color-rendering
+    color-scheme
     column-count
     column-fill
     column-gap

third_party/blink/web_tests/virtual/stable/webexposed/event-target-in-prototype-expected.txt

-Check that interfaces inherit from EventTarget
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-PASS EventSource.prototype.__proto__ is EventTarget.prototype
-PASS FileReader.prototype.__proto__ is EventTarget.prototype
-PASS MediaSource.prototype.__proto__ is EventTarget.prototype
-PASS MessagePort.prototype.__proto__ is EventTarget.prototype
-PASS Node.prototype.__proto__ is EventTarget.prototype
-PASS Performance.prototype.__proto__ is EventTarget.prototype
-PASS SharedWorker.prototype.__proto__ is EventTarget.prototype
-PASS WebSocket.prototype.__proto__ is EventTarget.prototype
-PASS Worker.prototype.__proto__ is EventTarget.prototype
-PASS Window.prototype.__proto__.__proto__ is EventTarget.prototype
-PASS successfullyParsed is true
-
-TEST COMPLETE
-

third_party/blink/web_tests/webexposed/css-properties-as-js-properties-expected.txt

@@ -107,6 +107,7 @@ color
 colorInterpolation
 colorInterpolationFilters
 colorRendering
+colorScheme
 columnCount
 columnFill
 columnGap

third_party/blink/web_tests/webexposed/css-property-listing-expected.txt

@@ -137,6 +137,7 @@ All changes to this list should go through Blink's feature review process: http:
     color-interpolation
     color-interpolation-filters
     color-rendering
+    color-scheme
     column-count
     column-fill
     column-gap