[M120 Migration][MM] Ensure player is destroyed before IEMEDrmBridge

[M120 Migration][MM] Ensure player is destroyed before IEMEDrmBridge

Issue:
when app use EME, chromium pass encrytped frame and key handle to MM,
and then MM decrypt frames.
When WebMediaPlayerImpl is destroyed, PipelineController::Stop will
destroy player by mojom IPC in browser process.
But IEMEDrmBridge is destroyed in render process.
If IEMEDrmBridge is destroyed before player, MM still use key handle to
decrypt, then it will crash.

Solution:
Use a sync IPC to ensure player is destroyed before IEMEDrmBridge

Patches from:
https://review.tizen.org/gerrit/#/c/299374/
https://review.tizen.org/gerrit/#/c/300392/
https://review.tizen.org/gerrit/#/c/302624/

Change-Id: I20b77e1c53d3dca685aaf0f355b3b8a149ccc056
Signed-off-by: wuxiaoliang <xliang.wu@samsung.com>
Signed-off-by: zhishun.zhou <zhishun.zhou@samsung.com>