Include a role description string in node info for Android accessibility.

extensions/shell/common/shell_content_client.cc

Index: extensions/shell/common/shell_content_client.cc
diff --git a/extensions/shell/common/shell_content_client.cc b/extensions/shell/common/shell_content_client.cc
index 946fe838192cfc3795c5138079f4c6ffbc5266a7..b4072a4a41bdd8045410070c1e5b57dd051cbab8 100644
--- a/extensions/shell/common/shell_content_client.cc
+++ b/extensions/shell/common/shell_content_client.cc
@@ -101,6 +101,12 @@ base::string16 ShellContentClient::GetLocalizedString(int message_id) const {
   return l10n_util::GetStringUTF16(message_id);
 }
 
+base::string16 ShellContentClient::GetLocalizedStringF(
+    int message_id,
+    const base::string16& string0) const {
+  return l10n_util::GetStringFUTF16(message_id, string0);
+}
+
 base::StringPiece ShellContentClient::GetDataResource(
     int resource_id,
     ui::ScaleFactor scale_factor) const {