Fix d8 dependency in chromium_builder_asan target.

BUG=
R=inferno@chromium.org

Review URL: https://codereview.chromium.org/156283004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250457 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 250457