Merge "Add mocking support for now function in AttributionProcessor" into tm-dev

  void Dump(

      std::promise<flatbuffers::Offset<ActivityAttributionData>> promise, flatbuffers::FlatBufferBuilder* fb_builder);

  using ClockType = std::chrono::time_point<std::chrono::system_clock>;

  using NowFunc = ClockType (*)();

  // by default, we use the std::chrono::system_clock::now implementation to

  // get the current timestamp

  AttributionProcessor() : now_func_(std::chrono::system_clock::now) {}

  // in other cases, we may need to use different implementation

  // e.g., for testing purposes

  AttributionProcessor(NowFunc func) : now_func_(func) {}

 private:

  // this function is added for testing support in

  // OnWakelockReleased

  NowFunc now_func_ = std::chrono::system_clock::now;

  bool wakeup_ = false;

  std::unordered_map<AddressActivityKey, BtaaAggregationEntry, AddressActivityKeyHasher> btaa_aggregator_;

  std::unordered_map<AddressActivityKey, BtaaAggregationEntry, AddressActivityKeyHasher> wakelock_duration_aggregator_;

    return;

  }

  auto cur_time = std::chrono::system_clock::now();

  auto cur_time = now_func_();

  for (auto& it : wakelock_duration_aggregator_) {

    it.second.wakelock_duration_ms = (uint64_t)duration_ms * it.second.byte_count / total_byte_count;

    if (btaa_aggregator_.find(it.first) == btaa_aggregator_.end()) {