public Builder clearUri() {
      uri_ = getDefaultInstance().getUri();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
Required. The URI that is being reported for malicious content to be
analyzed.
</pre>

<code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return This builder for chaining.
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/Submission.java