Chains are based on rear sprocket... which hasn't changed. Crank has the same number of teeth on the rings, yes? So, you shouldn't need to resize the chain. As far as tiagra vs 105 vs ultegra vs KMC vs SRAM vs whatever, it doesn't generally matter as long as it is made for the correct number of speeds.

So, no change is necessary. IF the rings are an identical size, no adjustments are necessary either.

If you remove the chain for any reason, make sure you put it back on in the correct orientation (only an issue for SHimano chains)... no reason to remove the chain though, and I wouldn't suggest it anyways.