Revert of Bring up of the enhanced bookmarks cluster service.

components/enhanced_bookmarks/bookmark_server_search_service.h

Index: components/enhanced_bookmarks/bookmark_server_search_service.h
diff --git a/components/enhanced_bookmarks/bookmark_server_search_service.h b/components/enhanced_bookmarks/bookmark_server_search_service.h
index 946b18493c333f87207e81cd00b2047946f18648..94ea943428ebed48c1e8c4b0a02dcc6213964eef 100644
--- a/components/enhanced_bookmarks/bookmark_server_search_service.h
+++ b/components/enhanced_bookmarks/bookmark_server_search_service.h
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "components/bookmarks/browser/base_bookmark_model_observer.h"
 #include "components/enhanced_bookmarks/bookmark_server_service.h"
 #include "net/url_request/url_fetcher.h"
 
@@ -37,7 +38,8 @@
   std::vector<const BookmarkNode*> ResultForQuery(const std::string& query);
 
  protected:
-  virtual scoped_ptr<net::URLFetcher> CreateFetcher() override;
+
+  virtual net::URLFetcher* CreateFetcher() override;
 
   virtual bool ProcessResponse(const std::string& response,
                                bool* should_notify) override;