Implementation of translation event logging.

components/translate/core/browser/translate_client.h

Index: components/translate/core/browser/translate_client.h
diff --git a/components/translate/core/browser/translate_client.h b/components/translate/core/browser/translate_client.h
index 1225a27e852910e0c346317804eae46af17626bf..51f621215f0a2de8b9577303c74a9b6365535698 100644
--- a/components/translate/core/browser/translate_client.h
+++ b/components/translate/core/browser/translate_client.h
@@ -20,6 +20,10 @@ namespace infobars {
 class InfoBar;
 }
 
+namespace metrics {
+class TranslateEventProto;
+}  // namespace metrics
+
 namespace translate {
 
 class TranslateAcceptLanguages;
@@ -50,6 +54,12 @@ class TranslateClient {
   // Returns the resource ID of the icon to be shown for the Translate infobars.
   virtual int GetInfobarIconID() const = 0;
 
+  // Record translate event.
+  // This is for user ID keyed event logging.
+  // This function will take metrics::TranslateEventProto and log the evnet that
+  // we care about.
+  virtual void RecordTranslateEvent(const metrics::TranslateEventProto&) = 0;
+
 #if !defined(USE_AURA)
   // Returns a translate infobar that owns |delegate|.
   virtual std::unique_ptr<infobars::InfoBar> CreateInfoBar(