Sync OmniboxEventProto

components/metrics/proto/omnibox_event.proto

 // Copyright 2014 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.
 //
 // Stores information about an omnibox interaction.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
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     KEYWORD = 5;           // Keyword-triggered searches
     BUILTIN = 6;           // Built-in URLs, such as chrome://version
     SHORTCUTS = 7;         // Recently selected omnibox suggestions
     EXTENSION_APPS = 8;    // DEPRECATED. Suggestions from extensions or apps
     CONTACT = 9;           // DEPRECATED. The user's contacts
     BOOKMARK = 10;         // The user's bookmarks
     ZERO_SUGGEST = 11;     // Suggestions based on the current page
     // This enum value is currently only used by Android GSA. It represents
     // a suggestion from the phone.
     ON_DEVICE = 12;
+    // This enum value is currently only used by Android GSA. It represents
+    // a suggestion powered by a Chrome content provider.
+    ON_DEVICE_CHROME = 13;
   }
 
   // The result set displayed on the completion popup
   // Next tag: 7
   message Suggestion {
     // Where does this result come from?
     optional ProviderType provider = 1;
 
     // What kind of result this is.
     // This corresponds to the AutocompleteMatch::Type enumeration in
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     // The number of times this provider returned a non-zero number of
     // suggestions during this omnibox session.
     // Note that each provider may define a session differently for its
     // purposes.
     optional int32 times_returned_results_in_session = 5;
   }
   // A list of diagnostic information about each provider.  Providers
   // will appear at most once in this list.
   repeated ProviderInfo provider_info = 12;
 }