Multi-select <select> in 'external popup window'

content/browser/web_contents/web_contents_view_android.cc

Index: content/browser/web_contents/web_contents_view_android.cc
diff --git a/content/browser/web_contents/web_contents_view_android.cc b/content/browser/web_contents/web_contents_view_android.cc
index 6a74db561136efcff27ca2965b767da7bbafed6a..547d189378f4dd3f81f7c906a7a01d1c2f5ce4c9 100644
--- a/content/browser/web_contents/web_contents_view_android.cc
+++ b/content/browser/web_contents/web_contents_view_android.cc
@@ -121,6 +121,17 @@ void WebContentsViewAndroid::ShowContextMenu(
   NOTIMPLEMENTED();
 }
 
+void WebContentsViewAndroid::ShowPopupMenu(
+    const gfx::Rect& bounds,
+    int item_height,
+    double item_font_size,
+    int selected_item,
+    const std::vector<WebMenuItem>& items,
+    bool right_aligned,
+    bool allow_multiple_selection) {
+  NOTIMPLEMENTED();
+}
+
 void WebContentsViewAndroid::StartDragging(
     const WebDropData& drop_data,
     WebKit::WebDragOperationsMask allowed_ops,