trunks: update power_manager mock

Add the new IgnoreNextPowerButtonPress method to the power_manager proxy
after updating the D-Bus API.

BUG=chromium:735764, b:35545754
TEST='FEATURES=test emerge power_manager power_manager-client trunks'
CQ-DEPEND=CL:541304

Change-Id: Iaa7d5ff289d0a322fda2c4fc8fbda5e1ab973a86
Reviewed-on: https://chromium-review.googlesource.com/544296
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
1 file changed