GitLab

should throw an InvalidStateError when buffer has been already
set in ConvolverNode

Bug: 709656
Change-Id: Ia0826f9ffa2e180da1311f4cded8ff7fe5461147
Reviewed-on: https://chromium-review.googlesource.com/1077713Reviewed-by: Raymond Toy <rtoy@chromium.org>
Commit-Queue: Hwanseung Lee <hs1217.lee@samsung.com>
Cr-Commit-Position: refs/heads/master@{#570767}