Fixed return value in error path -- result instead of false.

Fixed return value in error path -- result instead of false.

Found by VC++'s /analyze.

src\win8\test\ui_automation_client.cc(380) : warning C6216:
Compiler-inserted cast between semantically different integral types:
a Boolean type to HRESULT.

BUG=427616
Committed: https://crrev.com/131645aa41fdbb736398a841902e779ed08390e8
Cr-Commit-Position: refs/heads/master@{#306753}

[brucedawson, 2014-12-04 01:40:14]

brucedawson@chromium.org changed reviewers:
+ grt@chromium.org

[brucedawson, 2014-12-04 01:40:14]

Minor bug in this test, found by VC++'s /analyze.

[grt (UTC plus 2), 2014-12-04 02:10:32]

The CQ bit was checked by grt@chromium.org

[grt (UTC plus 2), 2014-12-04 02:10:32]

lgtm

Nice! Thanks for the fix.

[commit-bot: I haz the power, 2014-12-04 02:11:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/768513003/1

[commit-bot: I haz the power, 2014-12-04 03:02:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-04 03:03:30]

Patchset 1 (id:??) landed as
https://crrev.com/131645aa41fdbb736398a841902e779ed08390e8
Cr-Commit-Position: refs/heads/master@{#306753}