- Uses drawBitmapMesh to mimic the fisheye effect.
- Avoids any logic changes to the old style magnifier.
- The new magnifier is not exposed to public.
- Creates the magnifier instance lazily.
- Minor code cleanups suggested by IDE.
Bug: 145555868
Test: manually tested.
Change-Id: I6f6f6b353e2ce53bdc97fb36dd25cafa14d3d779