In preparation for a decision around how we share code, the generic code in
LimitedWidthContentrequirement is moved to ConfigHelper class. A fix
recently applied to Minerva (Ied3ed927202dd9356ebeb7e404230f571a1d910d)
is also incorporated into the new class.
The expectation is this code will be either:
1) be replaced by a submodule
OR
2) Used directly by Vector
after a decision tomorrow.
Bug: T359607
in I3967803bd75cf78d27c1a7c08e62730e46678a68 or removed
Change-Id: I04066acc86594e721e071e9096e1b12e1255b54b