Removed usage of RefPtr::Release in unit tests

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

Index: third_party/WebKit/Source/modules/fetch/BytesConsumerTest.cpp
diff --git a/third_party/WebKit/Source/modules/fetch/BytesConsumerTest.cpp b/third_party/WebKit/Source/modules/fetch/BytesConsumerTest.cpp
index 4c7bb3864b2b254a7467d93910af5487157344be..c4b5627a1198fb0e39b018591956a4b03668b775 100644
--- a/third_party/WebKit/Source/modules/fetch/BytesConsumerTest.cpp
+++ b/third_party/WebKit/Source/modules/fetch/BytesConsumerTest.cpp
@@ -73,7 +73,7 @@ class FakeBlobBytesConsumer : public BytesConsumer {
         blob_handle_->size() == UINT64_MAX)
       return nullptr;
     state_ = PublicState::kClosed;
-    return blob_handle_.Release();
+    return std::move(blob_handle_);
   }
 
   void SetClient(Client*) override {}