Restructure public side of window_manager service

Restructure public side of window_manager service

Instead of having //mojo/services be structured as so:
//mojo/services/public/cpp/foo
//mojo/services/public/interfaces/foo

we would like it to be structured as so:
//mojo/services/foo/public/cpp
//mojo/services/foo/public/interfaces

This CL does that restructuring for the window_manager service.

R=ben@chromium.org

Committed: https://chromium.googlesource.com/external/mojo/+/38c8c0f174634c8ca015eed6bcb247fce9017e7d

[blundell, 2014-12-08 20:21:43]

blundell@chromium.org changed reviewers:
+ beng@chromium.org

[blundell, 2014-12-08 20:21:43]

Hi Ben,

I realized that it's going to be easier to do the individual services
restructurings first followed by the "make services' public interfaces flexible
wrt their location and move them all to //services". Is this the structure you
had in mind?

[Ben Goodger (Google), 2014-12-09 18:34:07]

ben@chromium.org changed reviewers:
+ ben@chromium.org

[Ben Goodger (Google), 2014-12-09 18:34:07]

This approach seems fine to me and you can TBR future like changes to make your
refactoring more efficient as needed.

LGTM

[blundell, 2014-12-09 19:20:13]

Committed patchset #3 (id:40001) manually as
38c8c0f174634c8ca015eed6bcb247fce9017e7d (presubmit successful).