Read strequent search experment flag from phenotype

* Add a no-op Flags implementation for AOSP
* Put experiment flag name constants in new Experiemnts
  class

Bug 26400050

Change-Id: I2b540189a3234ba7cb0af6a6a0d1c3f0f5142534
3 files changed
tree: 8a2a34afebdbdce06ef8aee14355fdbfb91fa37d
  1. src/
  2. TestCommon/
  3. tests/