public Builder clearPageTitle() {
        pageTitle_ = getDefaultInstance().getPageTitle();
        bitField0_ = (bitField0_ & ~0x00000004);
        onChanged();
        return this;
      }
<pre>
Title for the web page, may contain HTML markups.
</pre>

<code>string page_title = 3;</code>

@return This builder for chaining.
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/WebDetection.java