Add a Physical Web omnibox autocomplete provider

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;
 option java_outer_classname = "OmniboxEventProtos";
@@ skipping 150 matching lines @@
     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;
     CLIPBOARD_URL = 14;  // Suggestion coming from clipboard (iOS only).
+    PHYSICAL_WEB = 15;     // Suggestions triggered by URLs broadcast by nearby
+                           // devices (iOS only).
   }
 
   // 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
@@ skipping 38 matching lines @@
                                     // from the on-device suggestion provider
                                     // (go/icing). This field is
                                     // used by Android GSA for on-device
                                     // suggestion logging.
       NAVSUGGEST_PERSONALIZED = 21; // A personalized url.
       SEARCH_SUGGEST_ANSWER   = 22; // DEPRECATED. Answers no longer have their
                                     // own type but instead can be attached to
                                     // suggestions of any type.
       CALCULATOR              = 23; // A calculator answer.
       CLIPBOARD               = 24; // An URL based on the clipboard.
+      PHYSICAL_WEB            = 25; // A Physical Web nearby URL.
+      PHYSICAL_WEB_OVERFLOW   = 26; // An item representing multiple Physical
+                                    // Web nearby URLs.
     }
     optional ResultType result_type = 2;
 
     // The relevance score for this suggestion.
     optional int32 relevance = 3;
 
     // How many times this result was typed in / selected from the omnibox.
     // Only set for some providers and result_types.  At the time of
     // writing this comment, it is only set for HistoryURL and
     // HistoryQuickProvider matches.
@@ skipping 38 matching lines @@
     // 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;
 }