Ship Readable Byte Streams

This CL changes the status of the ReadableByteStream runtime enabled
feature from "experimental" to "stable", so that it is turned on by
default.

See the Intent To Ship thread at:
https://groups.google.com/a/chromium.org/g/blink-dev/c/AQip4hjqt5U/m/OwPgs9NmAgAJ

Bug: 614302
Change-Id: Ie224d280b471e3bc8925d188d8cdbc44a8d1240a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2586290Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Nidhi Jaju <nidhijaju@google.com>
Cr-Commit-Position: refs/heads/master@{#837447}

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -1663,7 +1663,7 @@
     },
     {
       name: "ReadableByteStream",
-      status: "experimental",
+      status: "stable",
     },
     {
       name: "RemotePlayback",

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

@@ -1100,6 +1100,14 @@ interface PushSubscriptionOptions
     getter applicationServerKey
     getter userVisibleOnly
     method constructor
+interface ReadableByteStreamController
+    attribute @@toStringTag
+    getter byobRequest
+    getter desiredSize
+    method close
+    method constructor
+    method enqueue
+    method error
 interface ReadableStream
     attribute @@toStringTag
     getter locked
@@ -1109,6 +1117,19 @@ interface ReadableStream
     method pipeThrough
     method pipeTo
     method tee
+interface ReadableStreamBYOBReader
+    attribute @@toStringTag
+    getter closed
+    method cancel
+    method constructor
+    method read
+    method releaseLock
+interface ReadableStreamBYOBRequest
+    attribute @@toStringTag
+    getter view
+    method constructor
+    method respond
+    method respondWithNewView
 interface ReadableStreamDefaultReader
     attribute @@toStringTag
     getter closed

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

@@ -1007,6 +1007,14 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter applicationServerKey
 [Worker]     getter userVisibleOnly
 [Worker]     method constructor
+[Worker] interface ReadableByteStreamController
+[Worker]     attribute @@toStringTag
+[Worker]     getter byobRequest
+[Worker]     getter desiredSize
+[Worker]     method close
+[Worker]     method constructor
+[Worker]     method enqueue
+[Worker]     method error
 [Worker] interface ReadableStream
 [Worker]     attribute @@toStringTag
 [Worker]     getter locked
@@ -1016,6 +1024,19 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method pipeThrough
 [Worker]     method pipeTo
 [Worker]     method tee
+[Worker] interface ReadableStreamBYOBReader
+[Worker]     attribute @@toStringTag
+[Worker]     getter closed
+[Worker]     method cancel
+[Worker]     method constructor
+[Worker]     method read
+[Worker]     method releaseLock
+[Worker] interface ReadableStreamBYOBRequest
+[Worker]     attribute @@toStringTag
+[Worker]     getter view
+[Worker]     method constructor
+[Worker]     method respond
+[Worker]     method respondWithNewView
 [Worker] interface ReadableStreamDefaultReader
 [Worker]     attribute @@toStringTag
 [Worker]     getter closed

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

@@ -5613,6 +5613,14 @@ interface Range
     method setStartBefore
     method surroundContents
     method toString
+interface ReadableByteStreamController
+    attribute @@toStringTag
+    getter byobRequest
+    getter desiredSize
+    method close
+    method constructor
+    method enqueue
+    method error
 interface ReadableStream
     attribute @@toStringTag
     getter locked
@@ -5622,6 +5630,19 @@ interface ReadableStream
     method pipeThrough
     method pipeTo
     method tee
+interface ReadableStreamBYOBReader
+    attribute @@toStringTag
+    getter closed
+    method cancel
+    method constructor
+    method read
+    method releaseLock
+interface ReadableStreamBYOBRequest
+    attribute @@toStringTag
+    getter view
+    method constructor
+    method respond
+    method respondWithNewView
 interface ReadableStreamDefaultReader
     attribute @@toStringTag
     getter closed

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

@@ -1002,6 +1002,14 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter applicationServerKey
 [Worker]     getter userVisibleOnly
 [Worker]     method constructor
+[Worker] interface ReadableByteStreamController
+[Worker]     attribute @@toStringTag
+[Worker]     getter byobRequest
+[Worker]     getter desiredSize
+[Worker]     method close
+[Worker]     method constructor
+[Worker]     method enqueue
+[Worker]     method error
 [Worker] interface ReadableStream
 [Worker]     attribute @@toStringTag
 [Worker]     getter locked
@@ -1011,6 +1019,19 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method pipeThrough
 [Worker]     method pipeTo
 [Worker]     method tee
+[Worker] interface ReadableStreamBYOBReader
+[Worker]     attribute @@toStringTag
+[Worker]     getter closed
+[Worker]     method cancel
+[Worker]     method constructor
+[Worker]     method read
+[Worker]     method releaseLock
+[Worker] interface ReadableStreamBYOBRequest
+[Worker]     attribute @@toStringTag
+[Worker]     getter view
+[Worker]     method constructor
+[Worker]     method respond
+[Worker]     method respondWithNewView
 [Worker] interface ReadableStreamDefaultReader
 [Worker]     attribute @@toStringTag
 [Worker]     getter closed