Make anchors mouse-focusable

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index 0253525e3481a27a63fbedffb0bd68d3fdddb7af..fe79ed5c6b097d94fbc3fef74c989bbd9cf602b9 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -2164,8 +2164,22 @@ bool Element::isMouseFocusable() const
     return isFocusable();
 }
 
-void Element::dispatchFocusEvent(Element* oldFocusedElement, FocusType)
+void Element::willCallDefaultEventHandler(const Event& event)
 {
+    if (!wasFocusedByMouse())
+        return;
+    if (!event.isKeyboardEvent() || event.type() != EventTypeNames::keydown)
+        return;
+    setWasFocusedByMouse(false);
+    if (renderer())
+        renderer()->setShouldDoFullPaintInvalidation(true);
+}
+
+void Element::dispatchFocusEvent(Element* oldFocusedElement, FocusType type)
+{
+    if (type != FocusTypePage)
+        setWasFocusedByMouse(type == FocusTypeMouse);
+
     RefPtrWillBeRawPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::focus, false, false, document().domWindow(), 0, oldFocusedElement);
     EventDispatcher::dispatchEvent(this, FocusEventDispatchMediator::create(event.release()));
 }