Init orientation helpers in constructor

SGLM used to initialize orientaiton helpers lazily which requires checking
them in each public method path. In practice, this was not helpful at all
since it creates two orientation helpers and swaps them if orientation
changes. So moved them to the constructor.

Bug: 27901439
Change-Id: Ia49dcb861bfa09c4d89c0b04a1e9a933f33a65a7
2 files changed