Reland of https://chromiumcodereview.appspot.com/1405393003/
Reland of https://chromiumcodereview.appspot.com/1405393003/

annotated_run writes a proto with build info

This protobuf contains some information to identify a build. It is intended
to be used by code run from recipes.

BUG=513882

Review URL: https://codereview.chromium.org/1405393003

Review URL: https://codereview.chromium.org/1416783005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@297333 0039d316-1c4b-4281-b951-d872f2087c98

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