browser: Enable DockInfo for Aura Linux besides X11
    
Currently DockInfo is supporting ChromeOS and Aura X11, but we want to enable
it for Aura Ozone as well.
    
This CL stubs DockInfo::GetLocalProcessWindowAtPoint for non-X11 based
platforms and, in particular, this brings back support for Chrome browser in
Ozone-Wayland.
    
BUG=295089

Review URL: https://codereview.chromium.org/29493004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231842 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed