ComboBox:With Default Value

Build 2143 on fix-styles-cleanup
Reviewing disabled
Baseline History
Build 2143a7d3035
Current build. There are unaccepted changes, so build 1917 is still the baseline.
Build 1917b06719b current baseline
Accepted by Andrey Yamanov.
Build 1812edac476
Accepted by Andrey Yamanov.
Commenting is disabled because there's a newer build on this branch