Index: components/omnibox/browser/omnibox_field_trial.cc |
diff --git a/components/omnibox/browser/omnibox_field_trial.cc b/components/omnibox/browser/omnibox_field_trial.cc |
index 371c7626fef7ea77240d4d8dcaf719d8cb7a75e5..3aeff578b5fe746dad903206034bf87080b47522 100644 |
--- a/components/omnibox/browser/omnibox_field_trial.cc |
+++ b/components/omnibox/browser/omnibox_field_trial.cc |
@@ -431,6 +431,28 @@ float OmniboxFieldTrial::HQPTypedValue() { |
return typed_value; |
} |
+OmniboxFieldTrial::NumMatchesScores OmniboxFieldTrial::HQPNumMatchesScores() { |
+ std::string str = variations::GetVariationParamValue( |
+ kBundledExperimentFieldTrialName, kHQPNumMatchesScoresRule); |
+ // The parameter is a comma-separated list of (number, value) pairs, e.g. |
+ // "1:3,2:2.5,3:2,4:1.5". |
+ // This is a best-effort conversion; we trust the hand-crafted parameters |
+ // downloaded from the server to be perfect. There's no need to handle |
+ // errors smartly. |
+ base::StringPairs kv_pairs; |
+ if (!base::SplitStringIntoKeyValuePairs(str, ':', ',', &kv_pairs)) |
+ return NumMatchesScores{}; |
+ NumMatchesScores num_matches_scores(kv_pairs.size()); |
+ for (size_t i = 0; i < kv_pairs.size(); ++i) { |
+ base::StringToSizeT(kv_pairs[i].first, &num_matches_scores[i].first); |
+ // The input must be sorted by number of matches. |
+ DCHECK((i == 0) || |
+ (num_matches_scores[i].first > num_matches_scores[i - 1].first)); |
+ base::StringToDouble(kv_pairs[i].second, &num_matches_scores[i].second); |
+ } |
+ return num_matches_scores; |
+} |
+ |
size_t OmniboxFieldTrial::HQPNumTitleWordsToAllow() { |
// The value of the rule is a string that encodes an integer (actually |
// size_t) containing the number of words. |
@@ -536,6 +558,8 @@ const char OmniboxFieldTrial::kHQPFixFewVisitsBugRule[] = "HQPFixFewVisitsBug"; |
const char OmniboxFieldTrial::kHQPFreqencyUsesSumRule[] = "HQPFreqencyUsesSum"; |
const char OmniboxFieldTrial::kHQPMaxVisitsToScoreRule[] = |
"HQPMaxVisitsToScoreRule"; |
+const char OmniboxFieldTrial::kHQPNumMatchesScoresRule[] = |
+ "HQPNumMatchesScores"; |
const char OmniboxFieldTrial::kHQPNumTitleWordsRule[] = "HQPNumTitleWords"; |
const char OmniboxFieldTrial::kHQPAlsoDoHUPLikeScoringRule[] = |
"HQPAlsoDoHUPLikeScoring"; |