[Fetch] Body consume function should not set bodyUsed flag.

Source/modules/serviceworkers/Cache.cpp

Index: Source/modules/serviceworkers/Cache.cpp
diff --git a/Source/modules/serviceworkers/Cache.cpp b/Source/modules/serviceworkers/Cache.cpp
index 3a831831b20817f2f5cda94ccc10c4fbe0d81287..0bf4c5361d2a24723e93ff39f58177fce918f911 100644
--- a/Source/modules/serviceworkers/Cache.cpp
+++ b/Source/modules/serviceworkers/Cache.cpp
@@ -371,7 +371,7 @@ ScriptPromise Cache::putImpl(ScriptState* scriptState, Request* request, Respons
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     const ScriptPromise promise = resolver->promise();
     if (BodyStreamBuffer* buffer = response->internalBuffer()) {
-        if (buffer == response->buffer() && response->streamAccessed())
+        if (buffer == response->buffer() && response->isBodyConsumed())
             buffer = response->createDrainingStream();
         // If the response body type is stream, read the all data and create the
         // blob handle and dispatch the put batch asynchronously.