Replace deprecated calls to GetMetadata in Physical Web omnibox provider

components/omnibox/browser/physical_web_provider.h

 // Copyright (c) 2016 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.
 
 #ifndef COMPONENTS_OMNIBOX_BROWSER_PHYSICAL_WEB_PROVIDER_H_
 #define COMPONENTS_OMNIBOX_BROWSER_PHYSICAL_WEB_PROVIDER_H_
 
+#include <vector>
+
 #include "base/macros.h"
 #include "components/bookmarks/browser/titled_url_match.h"
 #include "components/omnibox/browser/autocomplete_input.h"
 #include "components/omnibox/browser/autocomplete_provider.h"
 
 class AutocompleteProviderClient;
 class HistoryURLProvider;
 
-namespace base {
-class ListValue;
+namespace physical_web {
+struct Metadata;
+using MetadataList = std::vector<Metadata>;
 }
 
 class PhysicalWebProvider : public AutocompleteProvider {
  public:
   // The maximum number of match results to provide. If the number of nearby
   // URLs exceeds this limit, an overflow item is created. Tapping the overflow
   // item navigates to a page with the full list of nearby URLs. The overflow
   // item is counted as a match result for the purposes of the match limit.
   //
   // ex: With kPhysicalWebMaxMatches == 1, there should be at most one
@@ skipping 15 matching lines @@
   PhysicalWebProvider(AutocompleteProviderClient* client,
                       HistoryURLProvider* history_url_provider);
   ~PhysicalWebProvider() override;
 
   // When the user has focused the omnibox but not yet entered any text (i.e.,
   // the Zero Suggest case), calling this method adds a separate match item to
   // |matches_| for each nearby URL in |metadata_list|, up to the maximum number
   // of matches allowed. If the total number of nearby URLs exceeds this limit,
   // one match is used for an overflow item.
   void ConstructZeroSuggestMatches(
-      std::unique_ptr<base::ListValue> metadata_list);
+      std::unique_ptr<physical_web::MetadataList> metadata_list);
 
   // When the user has entered text into the omnibox (i.e., the Query Suggest
   // case), calling this method adds a separate match item to |matches_| for
   // each nearby URL in |metadata_list| that matches all of the query terms in
   // |input|, up to the maximum number of matches allowed.
   void ConstructQuerySuggestMatches(
-      std::unique_ptr<base::ListValue> metadata_list,
+      std::unique_ptr<physical_web::MetadataList> metadata_list,
       const AutocompleteInput& input);
 
   // Adds an overflow match item to |matches_| with a relevance score equal to
   // |relevance| and a label indicating there are |additional_url_count| more
   // nearby URLs. The page |title| of one of the additional nearby URLs will be
   // included in the label, truncating if necessary. Selecting the overflow item
   // navigates to the Physical Web WebUI, which displays the full list of nearby
   // URLs.
   void AppendOverflowItem(int additional_url_count,
                           int relevance,
@@ skipping 31 matching lines @@
 
   // Set to true if at least one suggestion was created since the last time the
   // omnibox was focused, even if the suggestion could not be displayed due to
   // a field trial.
   bool had_physical_web_suggestions_at_focus_or_later_;
 
   DISALLOW_COPY_AND_ASSIGN(PhysicalWebProvider);
 };
 
 #endif  // COMPONENTS_OMNIBOX_BROWSER_PHYSICAL_WEB_PROVIDER_H_