|  | @@ -78,11 +78,11 @@ void ChannelzRegistry::MaybePerformCompaction() {
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				|  |  |  }
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				|  |  |  
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				|  |  |  int ChannelzRegistry::FindByUuid(intptr_t target_uuid) {
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				|  |  | -  int left = 0;
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				|  |  | -  int right = entities_.size() - 1;
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				|  |  | +  size_t left = 0;
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				|  |  | +  size_t right = entities_.size() - 1;
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				|  |  |    while (left <= right) {
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				|  |  | -    int true_middle = left + (right - left) / 2;
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				|  |  | -    int first_non_null = true_middle;
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				|  |  | +    size_t true_middle = left + (right - left) / 2;
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				|  |  | +    size_t first_non_null = true_middle;
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				|  |  |      while (first_non_null < right && entities_[first_non_null] == nullptr) {
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				|  |  |        first_non_null++;
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				|  |  |      }
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