VariationKey      113 components/variations/variations_associated_data.cc     const VariationKey key(trial_name, group_name);
VariationKey      127 components/variations/variations_associated_data.cc     const VariationKey key(trial_name, group_name);
VariationKey      159 components/variations/variations_associated_data.cc   std::map<VariationKey, VariationParams> variation_params_;