Use IMM32 instead of TSF on Win10 RS2 and below.

This is a workaround for a bug in Windows Input Service. The bug is
fixed from Win10 version RS3 and above. It takes time for the fix to be
serviced for all downlevel Windows platforms. Alternatively, we can use
IMM32 instead of TSF on all affected platforms so that users won't hit
the crash immediately after this change.

(cherry picked from commit a16b6d1ec9239abf2c497db5595c1f7ca9ed9ffe)

Bug: 973329
Change-Id: I16d28091cf7699fa0563a610cc47d08989bc7951
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660961
Reviewed-by: Yohei Yukawa <yukawa@chromium.org>
Commit-Queue: Siye Liu <siliu@microsoft.com>
Cr-Original-Commit-Position: refs/heads/master@{#669525}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1661503
Reviewed-by: Lan Wei <lanwei@chromium.org>
Cr-Commit-Position: refs/branch-heads/3770@{#1025}
Cr-Branched-From: a9eee1c7c727ef42a15d86e9fa7b77ff0e63840a-refs/heads/master@{#652427}

• ui/base/ime/init/input_method_factory.cc[diff]