Don't close SRT bubble on deactivate.

Don't close SRT bubble on deactivate.

TBR=noelutz
OWNER of chrome/browser/safe_browsing folder,
for trivial change of returning false instead of base class' true.
Being exercised already by other derived classes, e.g., ExtensionDisabledGlobalError

We will want to merge this to M39 once it gets added to Canary, hopefully tomorrow...
BUG=419049
Committed: https://crrev.com/8e22478d67a6f705d7bb2f66142f05f780e99e94
Cr-Commit-Position: refs/heads/master@{#297518}

[MAD, 2014-09-30 20:21:45]

mad@chromium.org changed reviewers:
+ csharp@chromium.org

[csharp, 2014-09-30 20:27:09]

lgtm

[MAD, 2014-09-30 20:29:32]

The CQ bit was checked by mad@chromium.org

[commit-bot: I haz the power, 2014-09-30 20:30:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/616143002/1

[commit-bot: I haz the power, 2014-09-30 22:08:16]

Committed patchset #1 (id:1) as 46c4346d53c4b8344b93232c440fcafd1edb3560

[commit-bot: I haz the power, 2014-09-30 22:11:03]

Patchset 1 (id:??) landed as
https://crrev.com/8e22478d67a6f705d7bb2f66142f05f780e99e94
Cr-Commit-Position: refs/heads/master@{#297518}