Really make sure we emit the update flag if we're not inactive
Really make sure we emit the update flag if we're not inactive

We're seeing this manifest itself when gclient sync fails, we blow away build, which
also blows away the update.flag file.

BUG=380958

Review URL: https://codereview.chromium.org/372333002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@281769 0039d316-1c4b-4281-b951-d872f2087c98

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