Create HintSessionWrapper right after CanvasContext

Move the construction of the HintSessionWrapper to RT right after the
creation of the CanvasContext to ensure enough time is provided to
not block the critical path in most cases.

Bug: 266560774
Test: manual
Change-Id: I1a67b163acd9c41156d9b9e14e974c67b6ba6ed5
3 files changed