Enable Canvas Text lang attribute

Allows developers to localize canvas text rendering in the
DOM and Offscreen.

Intent to Ship: https://chromestatus.com/feature/5066778773028864

Bug: 385006131
Change-Id: I0e40f32a83e73c8cf2674f08feea2fd8adf0e970
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6353396
Commit-Queue: Stephen Chenney <schenney@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Andres Ricardo Perez <andresrperez@chromium.org>
Auto-Submit: Stephen Chenney <schenney@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1435597}

android_webview/test/data/web_tests/virtual/stable/webexposed/global-interface-listing-expected.txt

@@ -1014,6 +1014,7 @@ interface CanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter lang
     getter letterSpacing
     getter lineCap
     getter lineDashOffset
@@ -1086,6 +1087,7 @@ interface CanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter lang
     setter letterSpacing
     setter lineCap
     setter lineDashOffset
@@ -6143,6 +6145,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter lang
     getter letterSpacing
     getter lineCap
     getter lineDashOffset
@@ -6214,6 +6217,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter lang
     setter letterSpacing
     setter lineCap
     setter lineDashOffset

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -719,7 +719,7 @@
     {
       // https://chromestatus.com/feature/5066778773028864
       name: "CanvasTextLang",
-      status: "experimental",
+      status: "stable",
     },
     {
       // crbug.com/389726691.

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

@@ -1256,6 +1256,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter lang
     getter letterSpacing
     getter lineCap
     getter lineDashOffset
@@ -1327,6 +1328,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter lang
     setter letterSpacing
     setter lineCap
     setter lineDashOffset

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

@@ -1357,6 +1357,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter globalCompositeOperation
 [Worker]     getter imageSmoothingEnabled
 [Worker]     getter imageSmoothingQuality
+[Worker]     getter lang
 [Worker]     getter letterSpacing
 [Worker]     getter lineCap
 [Worker]     getter lineDashOffset
@@ -1428,6 +1429,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter globalCompositeOperation
 [Worker]     setter imageSmoothingEnabled
 [Worker]     setter imageSmoothingQuality
+[Worker]     setter lang
 [Worker]     setter letterSpacing
 [Worker]     setter lineCap
 [Worker]     setter lineDashOffset

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

@@ -1064,6 +1064,7 @@ interface CanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter lang
     getter letterSpacing
     getter lineCap
     getter lineDashOffset
@@ -1136,6 +1137,7 @@ interface CanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter lang
     setter letterSpacing
     setter lineCap
     setter lineDashOffset
@@ -6379,6 +6381,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter lang
     getter letterSpacing
     getter lineCap
     getter lineDashOffset
@@ -6450,6 +6453,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter lang
     setter letterSpacing
     setter lineCap
     setter lineDashOffset

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

@@ -1192,6 +1192,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter globalCompositeOperation
 [Worker]     getter imageSmoothingEnabled
 [Worker]     getter imageSmoothingQuality
+[Worker]     getter lang
 [Worker]     getter letterSpacing
 [Worker]     getter lineCap
 [Worker]     getter lineDashOffset
@@ -1263,6 +1264,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter globalCompositeOperation
 [Worker]     setter imageSmoothingEnabled
 [Worker]     setter imageSmoothingQuality
+[Worker]     setter lang
 [Worker]     setter letterSpacing
 [Worker]     setter lineCap
 [Worker]     setter lineDashOffset