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This makes the origin secure so that getUserMedia() doesn't fail.
Updated expected file too.

Bug: 771540
Change-Id: I2717e195d6fb52cd2dedf45dd5c48b05b1058823
Reviewed-on: https://chromium-review.googlesource.com/716719
Commit-Queue: Philip Jägenstedt <foolip@chromium.org>
Reviewed-by: Philip Jägenstedt <foolip@chromium.org>
Cr-Commit-Position: refs/heads/master@{#509623}