| Index: components/nacl/browser/bad_message.h
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| diff --git a/components/nacl/browser/bad_message.h b/components/nacl/browser/bad_message.h
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| index 0a7ceb20709c3087ef0e21e106a51e032bd4123a..59b09c2457f252b117771d26c7b6b4e59cf5329f 100644
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| --- a/components/nacl/browser/bad_message.h
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| +++ b/components/nacl/browser/bad_message.h
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| @@ -19,7 +19,9 @@ namespace bad_message {
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|  //
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|  // NOTE: Do not remove or reorder elements in this list. Add new entries at the
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|  // end. Items may be renamed but do not change the values. We rely on the enum
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| -// values in histograms. Also update histograms.xml with any new values.
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| +// values in histograms. Also update histograms.xml with any new values by
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| +// running:
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| +//    python tools/metrics/histograms/update_bad_message_reasons.py
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|  enum BadMessageReason {
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|    NFH_OPEN_EXECUTABLE_BAD_ROUTING_ID = 0,
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|    NHMF_LAUNCH_CONTINUATION_BAD_ROUTING_ID = 1,
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| 
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