Fix copy-paste issue in BytesConsumerTestUtil::TwoPhaseReader.

third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h

Index: third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
diff --git a/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h b/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
index bc6ad81513af18cb0429d37391caaff6935e50e1..e3efa6d30cd47c247ac347e3733f31c10185ffa8 100644
--- a/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
+++ b/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
@@ -104,7 +104,7 @@ public:
         Vector<char> m_data;
     };
 
-    class TwoPhaseReader final : public GarbageCollectedFinalized<Reader>, public BytesConsumer::Client {
+    class TwoPhaseReader final : public GarbageCollectedFinalized<TwoPhaseReader>, public BytesConsumer::Client {
         USING_GARBAGE_COLLECTED_MIXIN(TwoPhaseReader);
     public:
         // |consumer| must not have a client when called.