Force Chrome to use external font in CSS

You can rename the font in your CSS and still use the distant woff file. For example:

@font-face {
  font-family: 'RobotoBis';
  font-style: normal;
  font-weight: 300;
  src: local('Roboto Light'), local('Roboto-Light'), url(http://fonts.gstatic.com/s/roboto/v15/Pru33qjShpZSmG3z6VYwnRJtnKITppOI_IvcXXDNrsc.woff2) format('woff2');
  unicode-range: U+0100-024F, U+1E00-1EFF, U+20A0-20AB, U+20AD-20CF, U+2C60-2C7F, U+A720-A7FF;
}


@font-face {
  font-family: 'RobotoBis';
  font-style: normal;
  font-weight: 300;
  src: local('Roboto Light'), local('Roboto-Light'), url(http://fonts.gstatic.com/s/roboto/v15/Hgo13k-tfSpn0qi1SFdUfVtXRa8TVwTICgirnJhmVJw.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215, U+E0FF, U+EFFD, U+F000;
}
h1 {
  font-family: RobotoBis;
}
<h1>Hello world !</h1>

But the dark side of this method is that Google can change the font URL in the future (that is mainly probable). So host you own font files to avoid this problem.

And of course, it can be apply only for the websites you own and where you can customize the CSS...