When selecting grid size to use for desktop, size breakpoints are
compared to the display dimensions with "stable" device density.
Expose the scale factor that needs to be applied to dimensions
provided in spec via DisplayController::Info, so it can be more easily
faked in tests.
Bug: 375643744
Test: atest DeviceProfileDumpTest
Flag: com.android.launcher3.enable_scalability_for_desktop_experience
Change-Id: I836430cc052f72c0f89b6cdd5ab5309a3482d94e
Toni Barzic
2d0ca1a195