Dispatch encoded_data_length separately in content/child

content/child/url_response_body_consumer.cc

Index: content/child/url_response_body_consumer.cc
diff --git a/content/child/url_response_body_consumer.cc b/content/child/url_response_body_consumer.cc
index a231d9a5c34e08f376fd2a8acf777e400a0cc877..101aee6535ca9e722487709d123c2f94198768c7 100644
--- a/content/child/url_response_body_consumer.cc
+++ b/content/child/url_response_body_consumer.cc
@@ -26,9 +26,6 @@ class URLResponseBodyConsumer::ReceivedData final
 
   const char* payload() const override { return payload_; }
   int length() const override { return length_; }
-  // TODO(yhirano): This returns an incorrect value. Remove it from
-  // ReceivedData before enabling Mojo-Loading.
-  int encoded_data_length() const override { return length_; }
 
  private:
   const char* const payload_;