QA » QE-Workstation

Steps:

1. Hover the mouse on an application window. On the position closed to one side edge. Hold and drag ""Left Mouse Button"" to resize the window.
2. Select a window. Press <Alt>+F8. Then resize the window with arrow keys or mouse.
3. After window resized, press <Enter>.

Note:

Original case summary is : ""XGL: Resize plugin works with
ALT+MidClick""

The summary and content were changed because the compiz was abandoned
for SLED12. New window manager of GNOME 3 *(mutter) take place of
this function in a way.*

Expected Result:
vp1. The window should be resized.

vp2. The window's size changed with the action of arrow keys or mouse.
vp3. The window should be resized.