fix url comment on HTMLDialogElement.cpp

third_party/WebKit/Source/core/html/HTMLDialogElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLDialogElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLDialogElement.cpp b/third_party/WebKit/Source/core/html/HTMLDialogElement.cpp
index bb332afda8f0f0fcd91aa2f46fb159b37b3d4f03..f5af85eb93c424bada4d34ff2055adb825e80561 100644
--- a/third_party/WebKit/Source/core/html/HTMLDialogElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLDialogElement.cpp
@@ -47,7 +47,7 @@ static void SetFocusForDialog(HTMLDialogElement* dialog) {
 
   // TODO(kochi): How to find focusable element inside Shadow DOM is not
   // currently specified.  This may change at any time.
-  // See crbug/383230 and https://github.com/whatwg/html/issue/2393 .
+  // See crbug/383230 and https://github.com/whatwg/html/issues/2393 .
   for (Node* node = FlatTreeTraversal::FirstChild(*dialog); node; node = next) {
     next = isHTMLDialogElement(*node)
                ? FlatTreeTraversal::NextSkippingChildren(*node, dialog)