[Autofill] Deduplicate Autocomplete and Datalist suggestions, keeping the latter

components/autofill/core/browser/autofill_external_delegate.h

Index: components/autofill/core/browser/autofill_external_delegate.h
diff --git a/components/autofill/core/browser/autofill_external_delegate.h b/components/autofill/core/browser/autofill_external_delegate.h
index 45ab4c288a57c1d5499444f95ad37c326bab78f1..689b177f5e40028512f92331483b9dbe0b6a2188 100644
--- a/components/autofill/core/browser/autofill_external_delegate.h
+++ b/components/autofill/core/browser/autofill_external_delegate.h
@@ -109,7 +109,9 @@ class AutofillExternalDelegate : public AutofillPopupDelegate {
   void ApplyAutofillOptions(std::vector<Suggestion>* suggestions);
 
   // Insert the data list values at the start of the given list, including
-  // any required separators.
+  // any required separators. Will also go through |suggestions| and remove
+  // duplicate autocomplete (not autofill) suggestions, keeping their datalist

[Evan Stade, 2015/11/19 16:40:10]

nit: Autofill is capitalized

[Mathieu, 2015/11/19 17:06:21]

Done.

+  // version.
   void InsertDataListValues(std::vector<Suggestion>* suggestions);
 
   AutofillManager* manager_;  // weak.