[Aura] Always use IMM32 on desktop Chrome (non-Ash mode)

[Aura] Always use IMM32 on desktop Chrome (non-Ash mode)

This CL partially reverts r194205, which aimed to support
IME for Ash. With this partial rollback, we can assume
that all the instances of Aura-Win Chrome running in desktop
use IMM32 regardless of the OS version.

Given that Ash IME support is not functional yet, there is
no strong reason to force TSF only on Win8+. Actually our
IMM32 implemenation is more robust than that of TSF. This
way should lower the risk of successful launch of Aura for
Windows in M31.

BUG=164964
TEST=manually confirmed that we can use IME with Win8 Aura build

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=223589

[yukawa, 2013-09-13 15:51:13]

Could you take a look?

[cpu_(ooo_6.6-7.5), 2013-09-13 20:57:09]

Hopefully we can enable TSF in the future.

lgtm

[yukawa, 2013-09-14 07:11:51]

Thx! I hope we can reenable TSF for Ash as soon as possible.

Mike, could you take a look?  With this CL, we should be able to concentrate
more on the stabilization of WinAura.

[cpu_(ooo_6.6-7.5), 2013-09-17 02:31:06]

if we are going to land this please do it so in the next 24 hours, we are very
close to branch point.

[msw, 2013-09-17 02:34:05]

LGTM; but the r194204 cited in the CL description looks unrelated...

[yukawa, 2013-09-17 02:37:04]

On 2013/09/17 02:34:05, msw wrote:
> LGTM; but the r194204 cited in the CL description looks unrelated...

Oops, fixed. r194205 is correct revision number.
Sending this to commit queue.

[commit-bot: I haz the power, 2013-09-17 02:38:14]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yukawa@chromium.org/23875022/1

[commit-bot: I haz the power, 2013-09-17 09:23:52]

Retried try job too often on win7_aura for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win7_aura&...

[commit-bot: I haz the power, 2013-09-17 09:31:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yukawa@chromium.org/23875022/1

[commit-bot: I haz the power, 2013-09-17 12:04:22]

Change committed as 223589