To resolve this problem I editted the file that jameh pointed to above.
The file is called Custom.css and I found it at this location:
C:\Users[User Name]\AppData\Local\Google\Chrome\User Data\Default\User StyleSheets
In that file I added the following:
@font-face { font-family: 'helvetica'; src: local('Arial'); }
The issue seems to be with helvetica fonts and the text-rendering:optimizeLegibility CSS property. I am not sure why this is an issue but this was how I resolved it.