Rename Node::attached() to confusingAndOftenMisusedAttached()

Source/core/html/shadow/MediaControlElements.cpp

Index: Source/core/html/shadow/MediaControlElements.cpp
diff --git a/Source/core/html/shadow/MediaControlElements.cpp b/Source/core/html/shadow/MediaControlElements.cpp
index 93e81e9055f0f968ecc86646fa4ee08e2dc8e322..c64e8fced9c6aae73066965fdacd37b1b21d747b 100644
--- a/Source/core/html/shadow/MediaControlElements.cpp
+++ b/Source/core/html/shadow/MediaControlElements.cpp
@@ -485,7 +485,7 @@ void MediaControlTimelineElement::defaultEventHandler(Event* event)
     if (event->isMouseEvent() && toMouseEvent(event)->button())
         return;
 
-    if (!attached())
+    if (!confusingAndOftenMisusedAttached())
         return;
 
     if (event->type() == eventNames().mousedownEvent)
@@ -510,7 +510,7 @@ void MediaControlTimelineElement::defaultEventHandler(Event* event)
 
 bool MediaControlTimelineElement::willRespondToMouseClickEvents()
 {
-    if (!attached())
+    if (!confusingAndOftenMisusedAttached())
         return false;
 
     return true;