Add PH flag for trusted server request compression

Test: atest PhFlagsTest
Change-Id: I07992f3d996dd4402248cf63768c963bd68d92e1
Bug: b/249680871
4 files changed
tree: b318760b19e87e9e3eae8f31fb3ae8324209fb76
  1. adservices/
  2. apex/
  3. sdksandbox/
  4. groups
  5. OWNERS
  6. PREUPLOAD.cfg
  7. project.config