| Index: content/browser/trace_controller_impl.cc
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| diff --git a/content/browser/trace_controller_impl.cc b/content/browser/trace_controller_impl.cc
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| index 01542e320481368c9cb737157f722609acaac957..a90f5dcf5e8eb852178069dee3b95fac5343dfbf 100644
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| --- a/content/browser/trace_controller_impl.cc
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| +++ b/content/browser/trace_controller_impl.cc
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| @@ -25,7 +25,7 @@ base::LazyInstance<TraceControllerImpl>::Leaky g_controller =
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|  
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|  class AutoStopTraceSubscriberStdio : public TraceSubscriberStdio {
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|   public:
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| -  AutoStopTraceSubscriberStdio(const FilePath& file_path)
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| +  explicit AutoStopTraceSubscriberStdio(const FilePath& file_path)
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|        : TraceSubscriberStdio(file_path) {}
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|  
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|    static void EndStartupTrace(TraceSubscriberStdio* subscriber) {
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| 
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