Ship CSSFontMetricsOverride with M87

This patch ships the following @font-face descriptors with M87:
- ascent-override
- descent-override
- line-gap-override

Bug: 1098355
Change-Id: I5ecb8761ccdd4a6c35eef3b8326266bc756dadc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2432949Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#811373}

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -464,8 +464,11 @@
       depends_on: ["CSSFontMetricsOverride"],
     },
     {
+      // @font-face descriptors ascent-override, descent-override and
+      // line-gap-override.
+      // https://drafts.csswg.org/css-fonts-4/#font-metrics-override-desc
       name: "CSSFontMetricsOverride",
-      status: "test",
+      status: "stable",
     },
     {
       name: "CSSFontSizeAdjust",

third_party/blink/web_tests/virtual/stable/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt

@@ -543,9 +543,12 @@ interface FileSystemWritableFileStream : WritableStream
     method write
 interface FontFace
     attribute @@toStringTag
+    getter ascentOverride
+    getter descentOverride
     getter display
     getter family
     getter featureSettings
+    getter lineGapOverride
     getter loaded
     getter status
     getter stretch
@@ -555,9 +558,12 @@ interface FontFace
     getter weight
     method constructor
     method load
+    setter ascentOverride
+    setter descentOverride
     setter display
     setter family
     setter featureSettings
+    setter lineGapOverride
     setter stretch
     setter style
     setter unicodeRange

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

@@ -16,6 +16,7 @@ animationName
 animationPlayState
 animationTimingFunction
 appearance
+ascentOverride
 backdropFilter
 backfaceVisibility
 background
@@ -132,6 +133,7 @@ cursor
 cx
 cy
 d
+descentOverride
 direction
 display
 dominantBaseline
@@ -211,6 +213,7 @@ length
 letterSpacing
 lightingColor
 lineBreak
+lineGapOverride
 lineHeight
 listStyle
 listStyleImage

third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-dedicated-worker-expected.txt

@@ -485,9 +485,12 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method write
 [Worker] interface FontFace
 [Worker]     attribute @@toStringTag
+[Worker]     getter ascentOverride
+[Worker]     getter descentOverride
 [Worker]     getter display
 [Worker]     getter family
 [Worker]     getter featureSettings
+[Worker]     getter lineGapOverride
 [Worker]     getter loaded
 [Worker]     getter status
 [Worker]     getter stretch
@@ -497,9 +500,12 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter weight
 [Worker]     method constructor
 [Worker]     method load
+[Worker]     setter ascentOverride
+[Worker]     setter descentOverride
 [Worker]     setter display
 [Worker]     setter family
 [Worker]     setter featureSettings
+[Worker]     setter lineGapOverride
 [Worker]     setter stretch
 [Worker]     setter style
 [Worker]     setter unicodeRange

third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-expected.txt

@@ -2106,9 +2106,12 @@ interface FocusEvent : UIEvent
     method constructor
 interface FontFace
     attribute @@toStringTag
+    getter ascentOverride
+    getter descentOverride
     getter display
     getter family
     getter featureSettings
+    getter lineGapOverride
     getter loaded
     getter status
     getter stretch
@@ -2118,9 +2121,12 @@ interface FontFace
     getter weight
     method constructor
     method load
+    setter ascentOverride
+    setter descentOverride
     setter display
     setter family
     setter featureSettings
+    setter lineGapOverride
     setter stretch
     setter style
     setter unicodeRange

third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-shared-worker-expected.txt

@@ -480,9 +480,12 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method write
 [Worker] interface FontFace
 [Worker]     attribute @@toStringTag
+[Worker]     getter ascentOverride
+[Worker]     getter descentOverride
 [Worker]     getter display
 [Worker]     getter family
 [Worker]     getter featureSettings
+[Worker]     getter lineGapOverride
 [Worker]     getter loaded
 [Worker]     getter status
 [Worker]     getter stretch
@@ -492,9 +495,12 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter weight
 [Worker]     method constructor
 [Worker]     method load
+[Worker]     setter ascentOverride
+[Worker]     setter descentOverride
 [Worker]     setter display
 [Worker]     setter family
 [Worker]     setter featureSettings
+[Worker]     setter lineGapOverride
 [Worker]     setter stretch
 [Worker]     setter style
 [Worker]     setter unicodeRange