Omnibox: Make Keyword Provide More Generous with Matching

components/omnibox/browser/keyword_provider.h

Index: components/omnibox/browser/keyword_provider.h
diff --git a/components/omnibox/browser/keyword_provider.h b/components/omnibox/browser/keyword_provider.h
index 3be6313b92879f016bf15535633b11c907052558..e82e6cdd988f7e796e73b4f55f76affd24b03c71 100644
--- a/components/omnibox/browser/keyword_provider.h
+++ b/components/omnibox/browser/keyword_provider.h
@@ -111,12 +111,13 @@ class KeywordProvider : public AutocompleteProvider {
                                       base::string16* remaining_input);
 
   // Determines the relevance for some input, given its type, whether the user
-  // typed the complete keyword, and whether the user is in "prefer keyword
-  // matches" mode, and whether the keyword supports replacement.
-  // If |allow_exact_keyword_match| is false, the relevance for complete
-  // keywords that support replacements is degraded.
+  // typed the complete keyword (or close to it), and whether the user is in
+  // "prefer keyword matches" mode, and whether the keyword supports
+  // replacement. If |allow_exact_keyword_match| is false, the relevance for
+  // complete keywords that support replacements is degraded.
   static int CalculateRelevance(metrics::OmniboxInputType::Type type,
                                 bool complete,
+                                bool sufficiently_complete,
                                 bool support_replacement,
                                 bool prefer_keyword,
                                 bool allow_exact_keyword_match);
@@ -125,6 +126,7 @@ class KeywordProvider : public AutocompleteProvider {
   // If |relevance| is negative, calculate a relevance based on heuristics.
   AutocompleteMatch CreateAutocompleteMatch(
       const TemplateURL* template_url,
+      const size_t meaningful_keyword_length,
       const AutocompleteInput& input,
       size_t prefix_length,
       const base::string16& remaining_input,