Remove remaining uses of KeySystemInfo and InitDataTypeMask

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 23741dbf918b084f161a88efc722bc5f047b452c..5b111e04f4326309f727350b2beb466686d4cc23 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -1241,11 +1241,6 @@ bool ChromeContentRendererClient::AllowPepperMediaStreamAPI(
   return false;
 }
 
-void ChromeContentRendererClient::AddKeySystems(
-    std::vector<media::KeySystemInfo>* key_systems) {
-  AddChromeKeySystemsInfo(key_systems);
-}
-
 void ChromeContentRendererClient::AddSupportedKeySystems(
     std::vector<std::unique_ptr<::media::KeySystemProperties>>* key_systems) {
   AddChromeKeySystems(key_systems);