Convert Event#keyIdentifier (deprecated) to Event#key

chrome/renderer/resources/plugins/plugin_poster.html

Index: chrome/renderer/resources/plugins/plugin_poster.html
diff --git a/chrome/renderer/resources/plugins/plugin_poster.html b/chrome/renderer/resources/plugins/plugin_poster.html
index db165602cb31722c6b9ae4a8b1e0dc35fea158b0..5448b2c96cab8dd359524aad050c4e4825027ecd 100644
--- a/chrome/renderer/resources/plugins/plugin_poster.html
+++ b/chrome/renderer/resources/plugins/plugin_poster.html
@@ -10,7 +10,7 @@
   };
 
   window.onkeydown = function(e) {
-    if (e.keyIdentifier == 'Enter' || e.keyIdentifier == 'U+0020') {
+    if (e.key == 'Enter' || e.key == ' ') {
       plugin.load();
       e.preventDefault();
     }