Build 64-bit binaries on the chromeos=1 ASan bot. Because Chrome OS developers are switching to 64 bits, it makes sense to do the same for our buildbot.
Build 64-bit binaries on the chromeos=1 ASan bot.
Because Chrome OS developers are switching to 64 bits, it makes sense to do the same for our buildbot.

Review URL: http://codereview.chromium.org/10005007

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@130913 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build