Make media controls keyboard accessible

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
===================================================================
--- Source/core/html/HTMLMediaElement.cpp	(revision 156221)
+++ Source/core/html/HTMLMediaElement.cpp	(working copy)
@@ -370,16 +370,8 @@
     HTMLElement::didMoveToNewDocument(oldDocument);
 }
 
-bool HTMLMediaElement::hasCustomFocusLogic() const
-{
-    return true;
-}
-
 bool HTMLMediaElement::supportsFocus() const
 {
-    if (ownerDocument()->isMediaDocument())
-        return false;
-
     // If no controls specified, we should still be able to focus the element if it has tabIndex.
     return controls() || HTMLElement::supportsFocus();
 }