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There's only a few instances of "video" as TRACE_EVENT category [1],
so it doesn't have a strong reason to exist. This CL folds them back
into "media"

sed -i -e 's/"video"/"media"/'  `grep -rn 'TRACE_EVENT.("video"' media/ content/ | cut -d: -f1 | uniq`

[1] https://cs.chromium.org/search/?q=TRACE_EVENT.%5C(%22video%22&sq=package:chromium&type=cs

Change-Id: Id2a164986d0cbabd465ba69b59b365668ac80777
Reviewed-on: https://chromium-review.googlesource.com/922401Reviewed-by: Yuri Wiitala <miu@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537553}