Remove unused embeddedSearch.searchBox APIs

chrome/renderer/searchbox/searchbox.h

Index: chrome/renderer/searchbox/searchbox.h
diff --git a/chrome/renderer/searchbox/searchbox.h b/chrome/renderer/searchbox/searchbox.h
index 40679545ec8f6958a4d42e5c517607473f5e04b7..9d22f9f94d9c31e93d8883d24b5638d73278d6b3 100644
--- a/chrome/renderer/searchbox/searchbox.h
+++ b/chrome/renderer/searchbox/searchbox.h
@@ -124,7 +124,6 @@ class SearchBox : public content::RenderFrameObserver,
   bool is_focused() const { return is_focused_; }
   bool is_input_in_progress() const { return is_input_in_progress_; }
   bool is_key_capture_enabled() const { return is_key_capture_enabled_; }
-  const base::string16& query() const { return query_; }
   const InstantSuggestion& suggestion() const { return suggestion_; }
 
  private:
@@ -142,8 +141,7 @@ class SearchBox : public content::RenderFrameObserver,
       const std::vector<InstantMostVisitedItem>& items) override;
   void SetInputInProgress(bool input_in_progress) override;
   void SetSuggestionToPrefetch(const InstantSuggestion& suggestion) override;
-  void Submit(const base::string16& query,
-              const EmbeddedSearchRequestParams& params) override;
+  void Submit(const EmbeddedSearchRequestParams& params) override;
   void ThemeChanged(const ThemeBackgroundInfo& theme_info) override;
 
   // Returns the current zoom factor of the render view or 1 on failure.
@@ -163,7 +161,6 @@ class SearchBox : public content::RenderFrameObserver,
   bool is_key_capture_enabled_;
   InstantRestrictedIDCache<InstantMostVisitedItem> most_visited_items_cache_;
   ThemeBackgroundInfo theme_info_;
-  base::string16 query_;
   EmbeddedSearchRequestParams embedded_search_request_params_;
   InstantSuggestion suggestion_;
   chrome::mojom::InstantAssociatedPtr instant_service_;