Revert of Re-enable local video test with better logging and higher tolerance.

Revert of Re-enable local video test with better logging and higher tolerance. (patchset #4 id:60001 of https://codereview.chromium.org/1108803002/)

Reason for revert:
still flaky, see http://chromium-try-flakes.appspot.com/search?q=WebRtcBrowserTest.CanSetupVideoCallAndDisableLocalVideo and
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_ng/builds/59522

Original issue's description:
> Re-enable local video test with better logging and higher tolerance.
>
> The test appears to get stuck on waiting for black frames. This patch
> adds some logging so we perhaps can learn more where in the image we
> find the nonblack pixels. Also trying to increase tolerance for
> rounding errors somewhat to see if that helps.
>
> BUG=477498
>
> Committed: https://crrev.com/839a0eb5f8aeff1de8263eff28e55cb8b5fe7396
> Cr-Commit-Position: refs/heads/master@{#329616}

TBR=kjellander@chromium.org,tommi@chromium.org,phoglund@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=477498
Committed: https://crrev.com/6bfe1b5612e270f8882099e486ad3975fd5b80fb
Cr-Commit-Position: refs/heads/master@{#330102}

[jam, 2015-05-15 16:07:03]

Created Revert of Re-enable local video test with better logging and higher
tolerance.

[commit-bot: I haz the power, 2015-05-15 16:07:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142643004/1

[commit-bot: I haz the power, 2015-05-15 16:08:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-15 16:09:22]

Patchset 1 (id:??) landed as
https://crrev.com/6bfe1b5612e270f8882099e486ad3975fd5b80fb
Cr-Commit-Position: refs/heads/master@{#330102}