Bugzilla

See commented out test case in `accessible/tests/browser/e10s/browser_caching_text_bounds.js` :)

See commented out test case in `accessible/tests/browser/e10s/browser_caching_text_bounds.js` :)

```
// XXX: There's a fuzziness here of about 8 pixels, implying we aren't taking into
// account some kind of margin or padding.
// /**
//  * Test character bounds in an intervening inline element with margins
//  * and with non-br line breaks
//  */
// addAccessibleTask(
//   `
//   <style>
//     @font-face {
//       font-family: Ahem;
//       src: url(${CURRENT_CONTENT_DIR}e10s/fonts/Ahem.sjs);
//     }
//   </style>
//   <div>hello<pre id="t" style="margin-left:100px;margin-top:30px;background-color:blue;">XX
// XXX
// XX
// X</pre></div>`,
//   async function(browser, docAcc) {
//     await testChar(docAcc, browser, "t", 0);
//     await testChar(docAcc, browser, "t", 3);
//     await testChar(docAcc, browser, "t", 7);
//     await testChar(docAcc, browser, "t", 10);
//   },
//   {
//     chrome: true,
//     topLevel: !isWinNoCache,
//     iframe: !isWinNoCache,
//   }
// );
```