Convert "Linux x64" on master.chromium to recipe
Convert "Linux x64" on master.chromium to recipe

Depends on https://codereview.chromium.org/1417483007 and https://codereview.chromium.org/1418973003

BUG=545480

Review URL: https://codereview.chromium.org/1421793004

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@297298 0039d316-1c4b-4281-b951-d872f2087c98

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