Ship Compression Streams

Remove the "CompressionStreams" flag and enable CompressionStream and
DecompressionStream by default.

See the "Intent to Ship" thread at
https://groups.google.com/a/chromium.org/d/msg/blink-dev/JmwpHPTu3XM/FQQ1fTwxBAAJ

BUG=999091

Change-Id: Ic97407e4391f2d0481aaeba1009c18706f036be1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1950370Reviewed-by: Kent Tamura <tkent@chromium.org>
Commit-Queue: Adam Rice <ricea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721871}

third_party/blink/renderer/modules/compression/compression_stream.idl

@@ -2,7 +2,6 @@
     Exposed=(Window,Worker),
     Constructor(DOMString format),
     ConstructorCallWith=ScriptState,
-    RuntimeEnabled=CompressionStreams,
     RaisesException=Constructor,
     MeasureAs=CompressionStreamConstructor
 ] interface CompressionStream {

third_party/blink/renderer/modules/compression/decompression_stream.idl

@@ -3,7 +3,6 @@
     Constructor(DOMString format),
     ConstructorCallWith=ScriptState,
     RaisesException=Constructor,
-    RuntimeEnabled=CompressionStreams,
     MeasureAs=DecompressionStreamConstructor
 ] interface DecompressionStream {
     readonly attribute ReadableStream readable;

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -320,10 +320,6 @@
       name: "CompositorTouchAction",
       status: "test",
     },
-    {
-      name: "CompressionStreams",
-      status: "experimental",
-    },
     {
       name: "ComputedAccessibilityInfo",
       status: "experimental",

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

@@ -138,6 +138,11 @@ interface CloseEvent : Event
     getter reason
     getter wasClean
     method constructor
+interface CompressionStream
+    attribute @@toStringTag
+    getter readable
+    getter writable
+    method constructor
 interface CountQueuingStrategy
     attribute @@toStringTag
     getter highWaterMark
@@ -359,6 +364,11 @@ interface DOMStringList
     method constructor
     method contains
     method item
+interface DecompressionStream
+    attribute @@toStringTag
+    getter readable
+    getter writable
+    method constructor
 interface ErrorEvent : Event
     attribute @@toStringTag
     getter colno

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

@@ -108,6 +108,11 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter reason
 [Worker]     getter wasClean
 [Worker]     method constructor
+[Worker] interface CompressionStream
+[Worker]     attribute @@toStringTag
+[Worker]     getter readable
+[Worker]     getter writable
+[Worker]     method constructor
 [Worker] interface CountQueuingStrategy
 [Worker]     attribute @@toStringTag
 [Worker]     getter highWaterMark
@@ -329,6 +334,11 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method constructor
 [Worker]     method contains
 [Worker]     method item
+[Worker] interface DecompressionStream
+[Worker]     attribute @@toStringTag
+[Worker]     getter readable
+[Worker]     getter writable
+[Worker]     method constructor
 [Worker] interface DedicatedWorkerGlobalScope : WorkerGlobalScope
 [Worker]     attribute @@toStringTag
 [Worker]     attribute PERSISTENT

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

@@ -876,6 +876,11 @@ interface CompositionEvent : UIEvent
     getter data
     method constructor
     method initCompositionEvent
+interface CompressionStream
+    attribute @@toStringTag
+    getter readable
+    getter writable
+    method constructor
 interface ConstantSourceNode : AudioScheduledSourceNode
     attribute @@toStringTag
     getter offset
@@ -1203,6 +1208,11 @@ interface DataTransferItemList
     method clear
     method constructor
     method remove
+interface DecompressionStream
+    attribute @@toStringTag
+    getter readable
+    getter writable
+    method constructor
 interface DelayNode : AudioNode
     attribute @@toStringTag
     getter delayTime

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

@@ -108,6 +108,11 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter reason
 [Worker]     getter wasClean
 [Worker]     method constructor
+[Worker] interface CompressionStream
+[Worker]     attribute @@toStringTag
+[Worker]     getter readable
+[Worker]     getter writable
+[Worker]     method constructor
 [Worker] interface CountQueuingStrategy
 [Worker]     attribute @@toStringTag
 [Worker]     getter highWaterMark
@@ -329,6 +334,11 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     method constructor
 [Worker]     method contains
 [Worker]     method item
+[Worker] interface DecompressionStream
+[Worker]     attribute @@toStringTag
+[Worker]     getter readable
+[Worker]     getter writable
+[Worker]     method constructor
 [Worker] interface ErrorEvent : Event
 [Worker]     attribute @@toStringTag
 [Worker]     getter colno