Add ContextualSuggestionsService to Omnibox

components/omnibox/browser/zero_suggest_provider.h

Index: components/omnibox/browser/zero_suggest_provider.h
diff --git a/components/omnibox/browser/zero_suggest_provider.h b/components/omnibox/browser/zero_suggest_provider.h
index ca1e0a6256f91603c9bd51837148c16c5c1395d6..71bf84e6962534c9c16b1b56ed3bb865c1f8e7ec 100644
--- a/components/omnibox/browser/zero_suggest_provider.h
+++ b/components/omnibox/browser/zero_suggest_provider.h
@@ -98,9 +98,6 @@ class ZeroSuggestProvider : public BaseSearchProvider,
   AutocompleteMatch NavigationToMatch(
       const SearchSuggestionParser::NavigationResult& navigation);
 
-  // Fetches zero-suggest suggestions by sending a request using |suggest_url|.
-  void Run(const GURL& suggest_url);
-
   // Converts the parsed results to a set of AutocompleteMatches and adds them
   // to |matches_|.  Also update the histograms for how many results were
   // received.
@@ -116,6 +113,9 @@ class ZeroSuggestProvider : public BaseSearchProvider,
   // function to return those |urls|.
   void OnMostVisitedUrlsAvailable(const history::MostVisitedURLList& urls);
 
+  void OnContextualSuggestionsFetcherAvailable(

[Mark P, 2017/07/18 19:11:30]

Please comment.

+      std::unique_ptr<net::URLFetcher> fetcher);
+
   // Whether we can show zero suggest suggestions that are not based on
   // |current_page_url|. Also checks that other conditions for non-contextual
   // zero suggest are satisfied.