GitLab

If the exit-VR prompt shows while content is editing text, we should
hide the keyboard.  A side effect of this change is that, when the
keyboard disappears, it notifies content that this has happened, and
content loses focus.

In the case of autofill settings, this means that if the user chooses
autofill settings but dismisses the exit-VR prompt to return to their
page, that the input field will no longer be focused for edit (and the
keyboard won't be showing).  In the 2D case, the keyboard is also
hidden, but the cursor is still blinking in the field.  Therefore, VR is
not at parity with 2D, but this feels better than having the keyboard
persist through VR modal dialogs.

BUG=835483
R=asimjour

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_vr
Change-Id: I753ec31273e2473a21ea5cd2c2dddf70c962f71a
Reviewed-on: https://chromium-review.googlesource.com/1030873Reviewed-by: Amirhossein Simjour <asimjour@chromium.org>
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554786}