| Index: third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h
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| diff --git a/third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h b/third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h
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| index 5db69b0b0eb84d034375457d6e6adee8685f5bf7..bba33affad602ddb9626f0348eab651b2d00fb97 100644
 | 
| --- a/third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h
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| +++ b/third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h
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| @@ -21,7 +21,7 @@ class ReadableStreamController;
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|  
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|  class CORE_EXPORT UnderlyingSourceBase : public GarbageCollectedFinalized<UnderlyingSourceBase>, public ScriptWrappable, public ActiveScriptWrappable, public ActiveDOMObject {
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|      DEFINE_WRAPPERTYPEINFO();
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| -    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(UnderlyingSourceBase);
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| +    USING_GARBAGE_COLLECTED_MIXIN(UnderlyingSourceBase);
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|  
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|  public:
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|      DECLARE_VIRTUAL_TRACE();
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| 
 |