Omnibox - ClipboardRecentContent - Make Proper Singleton

components/omnibox/browser/autocomplete_controller.h

Index: components/omnibox/browser/autocomplete_controller.h
diff --git a/components/omnibox/browser/autocomplete_controller.h b/components/omnibox/browser/autocomplete_controller.h
index 478e72e4bd39c9f7332a0c646364b4208cb4a058..c35072a654e8057ec7605f66aac398dba1484d13 100644
--- a/components/omnibox/browser/autocomplete_controller.h
+++ b/components/omnibox/browser/autocomplete_controller.h
@@ -21,7 +21,6 @@
 #include "components/omnibox/browser/autocomplete_result.h"
 
 class AutocompleteControllerDelegate;
-class ClipboardRecentContent;
 class HistoryURLProvider;
 class KeywordProvider;
 class SearchProvider;
@@ -209,9 +208,6 @@ class AutocompleteController : public AutocompleteProviderListener {
 
   ZeroSuggestProvider* zero_suggest_provider_;
 
-  // Used to build the ClipboardURLProvider.
-  std::unique_ptr<ClipboardRecentContent> clipboard_recent_content_;
-
   // Input passed to Start.
   AutocompleteInput input_;