Ignore blur events caused by the password generation.

When PasswordGenerationAgent copies the password value from the password field
to "Confirm Password" filed, a blur event is generated. It hides the currently
open generation prompt. Those events are just side-effects of how the class
works and should be ignored.

Bug: 899756,850079
Change-Id: Ia5d4f0184900fda97118252c48209ffcf1ce3444
Reviewed-on: https://chromium-review.googlesource.com/c/1327205
Commit-Queue: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606863}
6 files changed