Keep `:api: plugin` methods in the doc [ci skip]

`:api:` tag was removed in 5349f231 since RDoc doesn't support `:api:`
tag. But those methods are not private API, they are public API for
renderers. The renderers should be able to know that they can override
this method.

1 files changed, 3 insertions, 3 deletions

diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb
index 7e156586b9..fe1cd4a5a5 100644
--- a/actionpack/lib/abstract_controller/rendering.rb
+++ b/actionpack/lib/abstract_controller/rendering.rb
@@ -75,7 +75,7 @@ module AbstractController
     # Normalize args by converting <tt>render "foo"</tt> to
     # <tt>render :action => "foo"</tt> and <tt>render "foo/bar"</tt> to
     # <tt>render :file => "foo/bar"</tt>.
-    def _normalize_args(action = nil, options = {})
+    def _normalize_args(action = nil, options = {}) # :doc:
       if action.respond_to?(:permitted?)
         if action.permitted?
           action
@@ -90,12 +90,12 @@ module AbstractController
     end
 
     # Normalize options.
-    def _normalize_options(options)
+    def _normalize_options(options) # :doc:
       options
     end
 
     # Process extra options.
-    def _process_options(options)
+    def _process_options(options) # :doc:
       options
     end