Attach (recommended) or Link to PDF file here:
https://drive.google.com/open?id=1UjLxnFw2g3gn3tvNLRYLdmG6mFdFKCcr

Configuration:
- Web browser and its version: Chrome 77.0.3865.90
- Operating system and its version: Mac mojave 10.14.6
- PDF.js version: 2.3.194
- Is a browser extension: Nope

Steps to reproduce the problem:
1. Make sure to set `renderInteractiveForms` to `true`
2. The read-only form field(Sample title) doesn't honor it's proper font-size

What is the expected behavior?
<img width="862" alt="write" src="https://user-images.githubusercontent.com/4616548/66152094-4a009a80-e64b-11e9-81dc-178068055efa.png">

What went wrong?
<img width="842" alt="wrong" src="https://user-images.githubusercontent.com/4616548/66152100-4d942180-e64b-11e9-91a8-ad9caf451f98.png">


}
    this.container.append(svg);
    return this.container;
  }
}
class HighlightAnnotationElement extends AnnotationElement {
  constructor(parameters) {
    const isRenderable = !!(
      parameters.data.hasPopup ||
      parameters.data.title ||
      parameters.data.contents
    );
    super(parameters, {
      isRenderable,
      ignoreBorder: true,
      createQuadrilaterals: true,
    });
  }
  render() {
    if (!this.data.hasPopup) {
      this._createPopup(null, this.data);
    }
    if (this.quadrilaterals) {
      return this._renderQuadrilaterals("highlightAnnotation");
    }
    this.container.className = "highlightAnnotation";
    return this.container;
  }
}
class UnderlineAnnotationElement extends AnnotationElement {