Bug 1003770 - [Unit test] Unit test for shrinking UI
Bug 1006343 - Cannot enable layouts with keyboard setup menu after
3rd-party keyboard installation.
 - Should enable keyboard layout with [manifestURL, layoutId].
Bug 1009397: Removing /apps/*/shared from .gitignore
Merge pull request #19201 from anvk/bug1009397

Bug 1009397: Removing /apps/*/shared from .gitignore r=@yurenju
Merge pull request #19022 from mnjul/bug_1003770_shrinking_ui_test

Bug 1003770 - [Unit test] Unit test for shrinking UI
Merge pull request #19199 from RudyLu/keyboard/Bug1006343-Cannot_enable_layouts

Bug 1006343 - Cannot enable layouts with keyboard setup menu after
r=garychen
Merge remote-tracking branch 'upstream/master'