[Autofill/Autocomplete Feature] Substring matching instead of prefix matching.

components/autofill/core/browser/suggestion.h

Index: components/autofill/core/browser/suggestion.h
diff --git a/components/autofill/core/browser/suggestion.h b/components/autofill/core/browser/suggestion.h
index 6077185018ea1be0c3b1d62bc758ba990de13790..74311b1fad13fbf50f4748c6236f4e1cad29dd44 100644
--- a/components/autofill/core/browser/suggestion.h
+++ b/components/autofill/core/browser/suggestion.h
@@ -17,6 +17,10 @@ class CreditCard;
 
 struct Suggestion {
  public:
+  enum MatchMode {
+    PREFIX_MATCH,    // for prefix matched suggestions;
+    SUBSTRING_MATCH  // for substring matched suggestions;
+  };
   Suggestion();
 
   // Copy constructor for STL containers.
@@ -46,8 +50,12 @@ struct Suggestion {
   base::string16 value;
   base::string16 label;
   base::string16 icon;
+  MatchMode match;
 };
 
+// Orders prefix matched suggestions prior to substring matched.
+void OrderPrefixBeforeSubstring(std::vector<Suggestion>* suggestions);

[Evan Stade, 2015/06/08 23:23:38]

I don't really think this belongs here --- it should go in a util file. Given
the brevity of the implementation, though, it can probably just be inlined
wherever it's needed.

[Pritam Nikam, 2015/06/09 11:39:06]

Done.

+
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_SUGGESTION_H_