Replace all spaces by '_' in the AppUserModelId

Adjust DCHECKs in base::win::SetAppIdForPropertyStore() to reflect the new appid standard which requires less than 64 characters, not 128 (as of Windows 8, see Metro guidelines for details).

BUG=133176
TEST=Chrome installs, launches, and multi-profile OS integration works for user-level installs (on a user with a space in username).

Review URL: https://chromiumcodereview.appspot.com/10559097

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@143290 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed