Split translate_event.proto AUTOMATICALLY_TRANSLATED.

components/sync/protocol/user_event_specifics.proto

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Sync protocol datatype extension for user events.
 
 // Update proto_value_conversions{.h,.cc,_unittest.cc} if you change
 // any fields in this file.
 
 syntax = "proto2";
@@ skipping 45 matching lines @@
     // translation.
     DISMISSED = 4;
     // User manually entered either language.
     // In this case, from_language_code and to_language_code will be user chosen
     // values.
     MANUAL = 5;
     // User choose to revert the translation, in this case, from_language_code
     // and to_language_code will be previous chosen values.
     TRANSLATION_REVERTED = 6;
     // Automatically triggered translation.
-    AUTOMATIC_TRANSLATION = 7;
+    // User sets always translate in user settings.
+    AUTO_TRANSLATION_BY_PREF = 7;
+    // User navigated through a click from a translated page.
+    AUTO_TRANSLATION_BY_LINK = 8;
   }
   optional Interaction interaction = 3;
 }
 
 message UserEventSpecifics {
   // Time of event, as measured by client in microseconds since Windows epoch.
   optional int64 event_time_usec = 1;
 
   // The |global_id| field of the associated navigation, if there is one.
   optional int64 navigation_id = 2;
 
   // On startup we generate a new random id to identify which FieldTrialEvents
   // other events belonged to.
   optional fixed64 session_id = 3;
 
   oneof event {
     FieldTrialEvent field_trial_event = 4;
     LanguageDetection language_detection = 5;
     Translation translation = 6;
   }
 }