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This is a part of effort for using [RaisesException] when synchronously
rejecting a promise.

It uses [RaisesException] for
//third_party/blink/renderer/modules/mediastream.

Bug: 1001114
Change-Id: I3fde5022c2a992e5f04e4419fd9e960c5a42dbb6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1988126Reviewed-by: Tommi <tommi@chromium.org>
Commit-Queue: Julie Kim <jkim@igalia.com>
Cr-Commit-Position: refs/heads/master@{#728760}