WebRTC: Switch Win{32,64} {Debug,Release} bots to recipes.
WebRTC: Switch Win{32,64} {Debug,Release} bots to recipes.

BUG=346198

Review URL: https://codereview.chromium.org/258803003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@268732 0039d316-1c4b-4281-b951-d872f2087c98

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