Revert of Make Response::body return v8-extra based stream behind flag

third_party/WebKit/Source/modules/fetch/RequestTest.cpp

Index: third_party/WebKit/Source/modules/fetch/RequestTest.cpp
diff --git a/third_party/WebKit/Source/modules/fetch/RequestTest.cpp b/third_party/WebKit/Source/modules/fetch/RequestTest.cpp
index 0e31060f0d83e271f87c2c868722d7682aa8556b..cd1d5789c22d53e06d688e0d536b4118ec3127da 100644
--- a/third_party/WebKit/Source/modules/fetch/RequestTest.cpp
+++ b/third_party/WebKit/Source/modules/fetch/RequestTest.cpp
@@ -78,7 +78,7 @@
         webRequest.setHeader(WebString::fromUTF8(headers[i].key), WebString::fromUTF8(headers[i].value));
     webRequest.setReferrer(referrer, referrerPolicy);
 
-    Request* request = Request::create(getScriptState(), webRequest);
+    Request* request = Request::create(getExecutionContext(), webRequest);
     ASSERT(request);
     EXPECT_EQ(url, request->url());
     EXPECT_EQ(method, request->method());