Streams Implementation Update: Reader name and Stream methods

Source/modules/fetch/Body.h

Index: Source/modules/fetch/Body.h
diff --git a/Source/modules/fetch/Body.h b/Source/modules/fetch/Body.h
index 1ed83d42b44a46a368a39bb8ee171de0e8e1fd7b..7bc07b1cd318af97757144233aacd724fec7af6f 100644
--- a/Source/modules/fetch/Body.h
+++ b/Source/modules/fetch/Body.h
@@ -19,7 +19,7 @@
 namespace blink {
 
 class BodyStreamBuffer;
-class ExclusiveStreamReader;
+class ReadableStreamReader;
 class ScriptState;
 
 class Body
@@ -102,7 +102,7 @@ private:
     RefPtrWillBeMember<ScriptPromiseResolver> m_resolver;
     Member<ReadableStreamSource> m_streamSource;
     Member<ReadableStreamImpl<ReadableStreamChunkTypeTraits<DOMArrayBuffer>>> m_stream;
-    Member<ExclusiveStreamReader> m_streamReader;
+    Member<ReadableStreamReader> m_streamReader;
 };
 
 } // namespace blink