Bump BlinkGCPlugin version to 11 to force redownload of Clang 216630

Bump BlinkGCPlugin version to 11 to force redownload of Clang 216630

When 216630 was rolled in, there was one roll that got reverted,
and then we re-built packages for the next one. However, some devs
and maybe bots who didn't sync to the revert got stuck with the old
binaries which would now mismatch against goma's checksum.

No behavior change.

BUG=415883
R=thakis@chromium.org

Committed: https://chromium.googlesource.com/chromium/src/+/69f702ce8beb294a2e9af71865a427994cdd24a3

[hans, 2014-09-19 19:45:24]

hans@chromium.org changed reviewers:
+ thakis@chomium.org

[hans, 2014-09-19 19:45:25]

Please take a look.

[Nico, 2014-09-19 19:46:46]

thakis@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2014-09-19 19:46:46]

lgtm

[hans, 2014-09-19 20:00:21]

Mac and Linux both re-downloaded and successfully compile stuff:
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel/...

I'll commit this now.

[Nico, 2014-09-19 20:01:19]

(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_rel_preci...
on the first patch set happened to Do Stuff too)

[commit-bot: I haz the power, 2014-09-19 20:07:21]

Patchset 2 (id:??) landed as
https://crrev.com/69f702ce8beb294a2e9af71865a427994cdd24a3
Cr-Commit-Position: refs/heads/master@{#295768}

[hans, 2014-09-19 20:07:26]

Committed patchset #2 (id:20001) manually as 69f702c (presubmit successful).