Changed the default value of tabIndex of <fieldset> and <output> to be -1 as they are non-focusable…

third_party/WebKit/Source/core/html/HTMLFieldSetElement.h

Index: third_party/WebKit/Source/core/html/HTMLFieldSetElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLFieldSetElement.h b/third_party/WebKit/Source/core/html/HTMLFieldSetElement.h
index 0786c0b79a9385ebd485a79e63822973a53d1b29..5753e3a0067ff88676d6e5a92759bb10014adb4a 100644
--- a/third_party/WebKit/Source/core/html/HTMLFieldSetElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLFieldSetElement.h
@@ -66,6 +66,7 @@ private:
     mutable FormAssociatedElement::List m_associatedElements;
     // When dom tree is modified, we have to refresh the m_associatedElements array.
     mutable uint64_t m_documentVersion;
+    short tabIndex() const final;

[tkent, 2016/09/01 23:27:24]

Please move this to the private override block above. e.g. to next to
|supportsFocus()|

[lunalu1, 2016/09/02 01:07:38]

Done.

 };
 
 } // namespace blink