[compatibility]

[compatibility]
1)Don't show window in suspend state
2)Show window object if there's delay in receiving frame rendered event

1)Window is shown even after app is suspended
Window is shown on receiving frame,rendered call back. frame,rendered call back is invoking for every frame load Measure:
Maintain a state variable for suspend. In suspended state don't show window on frame,rendered call back
2)xwalk shows window object once frame rendered callback is
received. For this app, before frame rendered step is reached, alert
function (synchronized job) is used which suspends the engine and frame
rendered event is never emitted
Provide a fallback mechanism from xwalk side to show the window irrespectively after a certain time

[Reference]
http://slp-info.sec.samsung.net/gerrit/#/c/3062458/
http://slp-info.sec.samsung.net/gerrit/#/c/3105521/
signed-off-by: deepti <d.saraswat@samsung.com>

Change-Id: I3d8fb6b1a421a46ce135d14e754b2549fec05f7f