Use APIs to determine shortcut icon size

Previously there was no way for an app to know the shortcut icon size,
so there were APIs added to ActivityManager. Now we can change the
Contacts shortcut builder to use these APIs to make icons that look a
lot better.

Bug: 3224340
Change-Id: Ie18eac6b08e06464c62fcc3e663be39545653696
1 file changed