Omnibox: Make Keyword Provide More Generous with Matching

components/omnibox/browser/omnibox_field_trial.h

Index: components/omnibox/browser/omnibox_field_trial.h
diff --git a/components/omnibox/browser/omnibox_field_trial.h b/components/omnibox/browser/omnibox_field_trial.h
index b6e354993d5d8c59383ce63ebb299987de581cb9..8e94ea2b2739ab4eea291382bd8517d652237053 100644
--- a/components/omnibox/browser/omnibox_field_trial.h
+++ b/components/omnibox/browser/omnibox_field_trial.h
@@ -320,6 +320,29 @@ class OmniboxFieldTrial {
   static bool PreventUWYTDefaultForNonURLInputs();
 
   // ---------------------------------------------------------
+  // For the aggressive keyword matching experiment that's part of the bundled
+  // omnibox field trial.
+
+  // Return true if KeywordProvider (via TemplateURLService), for auto-
+  // generated keywords, should consider the registry (e.g., co.uk) an
+  // important part of the keyword name for matching purposes.  Returns true
+  // if the experiment isn't active.
+  static bool KeywordRequiresRegistry();
+
+  // Return true if KeywordProvider (via TemplateURLService), for auto-
+  // generated keywords, should return a keyword if the user starts typing
+  // the domain name portion, skipping any host before the domain name.
+  // In other words, returns whether the prefix before the domain name should
+  // be considered important for matching purposes.  Returns true if the
+  // experiment isn't active.
+  static bool KeywordRequiresPrefixBeforeDomain();
+
+  // For the relevance score that KeywordProvider should assign to keywords
+  // with nearly-complete matches, i.e., the user has typed all of the
+  // important part of the keyword.  Returns -1 if the experiment isn't active.
+  static int KeywordScoreForNearlyCompleteMatch();
+
+  // ---------------------------------------------------------
   // Exposed publicly for the sake of unittests.
   static const char kBundledExperimentFieldTrialName[];
   // Rule names used by the bundled experiment.
@@ -341,6 +364,9 @@ class OmniboxFieldTrial {
   static const char kHQPNumTitleWordsRule[];
   static const char kHQPAlsoDoHUPLikeScoringRule[];
   static const char kPreventUWYTDefaultForNonURLInputsRule[];
+  static const char kKeywordRequiresRegistryRule[];
+  static const char kKeywordRequiresPrefixBeforeDomainRule[];
+  static const char kKeywordScoreForNearlyCompleteMatchRule[];
 
   // Parameter names used by the HUP new scoring experiments.
   static const char kHUPNewScoringEnabledParam[];