Set chromium.gpu status to have revision and build_url.
Set chromium.gpu status to have revision and build_url.

Requires https://codereview.chromium.org/347033006/.

Review URL: https://codereview.chromium.org/344083007

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@279533 0039d316-1c4b-4281-b951-d872f2087c98

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