Ravi Mistry 9214bb2bec Check in GrDiffBuilder._renderContentByRange that el exists
gr-diff-builder should not try to re-render an element that does not
exist.

Context: When the lines specified in
https://gerrit.googlesource.com/gerrit/+/master/polygerrit-ui/app/samples/coverage-plugin.html#32
is not yet visible on the page it throws a JS error in the console.

Bug: https://bugs.chromium.org/p/skia/issues/detail?id=7081
Change-Id: Ia5051c8df2ef4a1c4f4f9b09f6aec68b4fd69fdf
2018-01-03 10:58:08 -05:00
..
2017-09-27 18:55:42 -04:00