Hide existing StrictMode violations.

Hide existing StrictMode violations.

While we work on to resolve these known StrictMode
violations, it's a poor experience for dogfooders to see
these every time they are triggered. It is still
important for developers and dogfooders to see and report
newly introduced violations with the StrictMode red border
flash.

BUG=508615, 525781, 525785, 527415, 527429
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1334533004

Cr-Commit-Position: refs/heads/master@{#348147}
(cherry picked from commit b6f61334631ab1ca930b18e1cbb26d6bb7b92dc7)

TBR=yfriedman@chromium.org

[Peter Wen, 2015-09-10 16:38:15]

The CQ bit was checked by wnwen@chromium.org

[Peter Wen, 2015-09-10 16:38:29]

Trying out TBR for merge. :)

[commit-bot: I haz the power, 2015-09-10 16:39:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1336603002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1336603002/1

[commit-bot: I haz the power, 2015-09-10 16:39:36]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-09-10 16:39:36]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Peter Wen, 2015-09-10 16:40:35]

Aww, I guess I need to become a committer first. :)

[Yaron, 2015-09-10 16:41:57]

On 2015/09/10 16:40:35, Peter Wen wrote:
> Aww, I guess I need to become a committer first. :)

lgtm

[Peter Wen, 2015-09-10 16:42:12]

The CQ bit was checked by wnwen@chromium.org

[commit-bot: I haz the power, 2015-09-10 16:43:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1336603002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1336603002/1

[commit-bot: I haz the power, 2015-09-10 16:45:36]

Committed patchset #1 (id:1)