Ship "Response construction with ReadableStream".

Intent-To-Ship thread: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/0S-jPuCy8ws
BUG=564479, 596832

Review-Url: https://codereview.chromium.org/1993033003
Cr-Original-Commit-Position: refs/heads/master@{#395223}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e0cb6a355deab56251cea1ac5b2bcc4b605c76e2

common.gypi

@@ -1540,13 +1540,12 @@
     # Be sure to synchronize with build/module_args/v8.gni
 
     'v8_extra_library_files': [
-      '../third_party/WebKit/Source/core/streams/ReadableStreamTempStub.js',
-    ],
-    'v8_experimental_extra_library_files': [
       '../third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js',
       '../third_party/WebKit/Source/core/streams/CountQueuingStrategy.js',
       '../third_party/WebKit/Source/core/streams/ReadableStream.js',
     ],
+    'v8_experimental_extra_library_files': [
+    ],
 
     # Use brlapi from brltty for braille display support.
     'use_brlapi%': 0,