Replaced if SUCCEEDED trees with CHECK macros.
Replaced if SUCCEEDED trees with CHECK macros.

Rejjell/google-drive-shell-extension,google/google-drive-shell-extension,jpgaribotti/google-drive-shell-extension,Rejjell/google-drive-shell-extension,google/google-drive-shell-extension,Rejjell/google-drive-shell-extension,jpgaribotti/google-drive-shell-extension,google/google-drive-shell-extension,Rejjell/google-drive-shell-extension,jpgaribotti/google-drive-shell-extension