doc.wikimedia.org is a helpful resource when iterating on a codebase.
Like MobileFrontend, generate documentation with Doxygen so that it can
be published there.
Note well that:
- The CALL_GRAPH and CALLER_GRAPH statements have been removed as they
were being set to the default value (NO)
- DOT_FONTSIZE was increased from 10 to 12
Bug: T242779
Change-Id: I41e4c6ca2b604382b036606ebcb40f11a1e8abc0
