apexd: enable clang-tidy and fix revealed warnings

So far only default checks, will look into promoting some of them to
errors and adding some more checks in the follow up CLs.

Test: apexservice_test, apex_e2e_tests
Change-Id: Ia71f7cb4b83920a9ea897b1e4477e243b5a2aa80
8 files changed
tree: a0f12ef09c8c646b7fda4db78f399edbd03b2386
  1. apexd/
  2. apexer/
  3. proto/
  4. tests/
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING