Refactor: Integrate rework handles by application

Refactor: Integrate rework handles by application

Integrate rework handles information by application.
Window Manager handles request by "task" and block other requests
until the task finishes.
This is necessary because window mangaer task consists of 2 asyncronous parts,
which are checking policy and redraw sync, and ensures the 2 parts should be
managed consecutively.

Bug-AGL: SPEC-1510

Change-Id: I9a1d5daad5b47dd5e68a437173b3d5f1b3923865
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>