> Re-reland r245404 ("If the destination directory doesn't contain the desired repo, delete it")
> 
> BUG=
> 
> Review URL: https://codereview.chromium.org/133073015

TBR=borenet@google.com

Review URL: https://codereview.chromium.org/146583013

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@250878 0039d316-1c4b-4281-b951-d872f2087c98