There are some reports that SearchHost.exe freezes with Mozc built with BRANDING=GoogleJapaneseInput.

Through bisect investigations, I figured out 68e99df is the change of this issue. It modified FileUtil::CreateDirectory.

We should update FileUtil::CreateDirectory again to address the problem.

As a tricky point, this issue is reported only on BRANDING=GoogleJapaneseInput and channel_dev=0.

References:

• https://support.google.com/gboard/thread/300465502?hl=ja&msgid=301486087
• https://answers.microsoft.com/ja-jp/windows/forum/all/windowssearchhost%E3%81%8C%E4%B8%AD%E6%96%AD/03d7f11c-f73d-4b0f-b161-e4b90dd371c4