public Builder clearThreatConfidence() {
      bitField0_ = (bitField0_ & ~0x00000002);
      threatConfidence_ = null;
      if (threatConfidenceBuilder_ != null) {
        threatConfidenceBuilder_.dispose();
        threatConfidenceBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Confidence that the URI is unsafe.
</pre>

<code>.google.cloud.webrisk.v1.ThreatInfo.Confidence threat_confidence = 2;</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/ThreatInfo.java