Use RemoteInputMethodWin in production

Use RemoteInputMethodWin in production

With this CL, InputMethodIMM32 will be replaced with RemoteInputMethodWin when and only when the target window is remote window used by Metro/Ash.  There should be no effect for other platforms and desktop Chrome on Windows.

The goal of this CL is testing RemoteInputMethodWin in Canary channel. Ideally there should be no regression, even though subsequent CLs are still needed to enable IME under Ash mode. 

Sheriffs: Feel free to revert this CL if it breaks something.

BUG=164964
TEST=manually done on Windows 8.1

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=236708

[Seigo Nonaka, 2013-11-21 23:37:16]

lgtm

[commit-bot: I haz the power, 2013-11-22 00:56:13]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yukawa@chromium.org/80263005/70001

[commit-bot: I haz the power, 2013-11-22 02:51:34]

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

[commit-bot: I haz the power, 2013-11-22 03:43:21]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yukawa@chromium.org/80263005/70001

[commit-bot: I haz the power, 2013-11-22 06:06:07]

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

[commit-bot: I haz the power, 2013-11-22 06:24:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yukawa@chromium.org/80263005/70001

[commit-bot: I haz the power, 2013-11-22 07:20:40]

Change committed as 236708