Fix LoadDataWithBaseUrlTest.testloadDataWithBaseUrlCallsOnPageStarted after r474498.

content/browser/frame_host/navigation_handle_impl.h

Index: content/browser/frame_host/navigation_handle_impl.h
diff --git a/content/browser/frame_host/navigation_handle_impl.h b/content/browser/frame_host/navigation_handle_impl.h
index e74ed52878aba6cf9903d76db251e8ed49ea6131..58d198c46d551a4b476b725afff6ae85e64c8d47 100644
--- a/content/browser/frame_host/navigation_handle_impl.h
+++ b/content/browser/frame_host/navigation_handle_impl.h
@@ -367,10 +367,6 @@ class CONTENT_EXPORT NavigationHandleImpl : public NavigationHandle {
     complete_callback_for_testing_ = callback;
   }
 
-  void set_base_url_for_data_url(const GURL& url) {
-    base_url_for_data_url_ = url;
-  }
-
   CSPDisposition should_check_main_world_csp() const {
     return should_check_main_world_csp_;
   }