Similar to how Gerrit formats a file side by side, allow viewing a modified
text file in a side by side view.
Gerrit's method of rendering this in a 4 column table with each line being a
new row is horrid and should be replicated. Critique and GitHub get this more
right by rendering 4 divs in a 1 row table, enabling the user to select a
contiguous section of source code from either side.
Original issue reported on code.google.com by
dborowitz@google.comon 11 Nov 2012 at 11:17