Main surface should wait for the customization options data (2/3)

There is data, e.g. customizationOptionsData, that will decide the
initial view dimensions of the main surface. Thus we make a mechanism
to wait for the data to be ready to calculate the related dimensions.

Test: Manually tested. Unit test.
Bug: 393983228
Flag: EXEMPT bugfix
Change-Id: I39008fc4640ce706f659dbdbde475b9f45fd1446