Fixed that notifications weren't updating to the display size anymore

In the big refactoring, the call to onDensityOrFontScaleChanged
was dropped, so notifications weren't actually reinflated.
This is happening again.

Change-Id: Ie866bb947a5803dbb650fa0e7ef3764948862825
Fixes: 118402606
Test: change density and observe notification changing size
3 files changed