Allow TranslateRanker to override decisions taken by heuristics.

components/translate/core/browser/translate_manager.h

Index: components/translate/core/browser/translate_manager.h
diff --git a/components/translate/core/browser/translate_manager.h b/components/translate/core/browser/translate_manager.h
index b164051b3e4b4c0832d85bc2ba76bd9391116abf..de9267578cea34cb0f84945441242eb86c657de0 100644
--- a/components/translate/core/browser/translate_manager.h
+++ b/components/translate/core/browser/translate_manager.h
@@ -124,6 +124,11 @@ class TranslateManager {
   // testing, set to true to offer anyway.
   static void SetIgnoreMissingKeyForTesting(bool ignore);
 
+  // Returns true if the decision should be overridden and logs the event
+  // appropriately. |event_type| must be one of the
+  // values defined by metrics::TranslateEventProto::EventType.
+  bool ShouldOverrideDecision(int event_type);
+
  private:
   friend class translate::testing::TranslateManagerTest;