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When destroying a surface, it is important to also detach it from its
parent to ensure the surface is deleted.

Bug: 1076258
TBR=sunnyps@chromium.org

Change-Id: I27987a6340e92a1f6d717ada5d74d40e5f6e2e38
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2172124Reviewed-by: Khushal <khushalsagar@chromium.org>
Commit-Queue: Khushal <khushalsagar@chromium.org>
Auto-Submit: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#763670}