Implement ByteLengthQueuingStrategy

third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js

Index: third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js
diff --git a/third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js b/third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js
new file mode 100644
index 0000000000000000000000000000000000000000..91584d7c3d48feea691d7e464265b9d8282f1451
--- /dev/null
+++ b/third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js
@@ -0,0 +1,26 @@
+(function(global, binding, v8) {
+    'use strict';
+
+    const defineProperty = global.Object.defineProperty;
+
+    class ByteLengthQueuingStrategy {
+        constructor(options) {
+            defineProperty(this, 'highWaterMark', {
+                value: options.highWaterMark,
+                enumerable: true,
+                configurable: true,
+                writable: true
+            });
+        }
+        size(chunk) {
+            return chunk.byteLength;
+        }
+    }
+
+    defineProperty(global, 'ByteLengthQueuingStrategy', {
+        value: ByteLengthQueuingStrategy,
+        enumerable: false,
+        configurable: true,
+        writable: true
+    });
+});