Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227935 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227935
Move window sizer logic to ash/wm/window_positioner

* Removed dead, unnecessary code.
* Change ash_shell to use this logic. (it should behave roughly the same as chrome)

BUG=272460

Review URL: https://codereview.chromium.org/26043002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227936 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227936