Revert "chromium: remove preferLocalBuild"

This reverts commit fdb5cf8107d6ecb5c775c2ad026551dbd11248f1.

The reason I'm reverting this is that the implications this had on the
IO load of Hydra are fixed by c92dbffeac75afe93c05c1ef216e927f075755c5.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

aszlig 26f02462 9de4cadd

Changed files
+2
pkgs
applications
networking
browsers
chromium
source
+2
pkgs/applications/networking/browsers/chromium/source/default.nix
···
"$main/content/browser/browser_main_loop.cc"
'';
passthru = {
inherit version channel;
plugins = fetchurl binary;
···
"$main/content/browser/browser_main_loop.cc"
'';
+
preferLocalBuild = true;
+
passthru = {
inherit version channel;
plugins = fetchurl binary;