Rename Event.scoped to Event.composed and invert its meaning

third_party/WebKit/Source/core/events/EventPath.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 32 matching lines @@
     if (referenceNode.isPseudoElement()) {
         ASSERT(referenceNode.parentNode());
         return referenceNode.parentNode();
     }
 
     return &referenceNode;
 }
 
 static inline bool shouldStopAtShadowRoot(Event& event, ShadowRoot& shadowRoot, EventTarget& target)
 {
-    // WebKit never allowed selectstart event to cross the the shadow DOM boundary.
-    // Changing this breaks existing sites.
-    // See https://bugs.webkit.org/show_bug.cgi?id=52195 for details.
-    const AtomicString eventType = event.type();
-    return target.toNode() && target.toNode()->shadowHost() == shadowRoot.host()
-        && event.scoped();
+    if (shadowRoot.isV1()) {
+        // In v1, an event is scoped in default unless event.composed flag is set.

[kochi, 2016/05/31 06:36:57]

nit: s/in default/by default/

[hayato, 2016/05/31 07:12:24]

Done

+        return !event.composed() && target.toNode() && target.toNode()->shadowHost() == shadowRoot.host();
+    }
+    // Ignores event.composed() for v0.
+    // Instead, use event.isScopedInV0() for backward compatibility.
+    return event.isScopedInV0() && target.toNode() && target.toNode()->shadowHost() == shadowRoot.host();
 }
 
 EventPath::EventPath(Node& node, Event* event)
     : m_node(node)
     , m_event(event)
 {
     initialize();
 }
 
 void EventPath::initializeWith(Node& node, Event* event)
@@ skipping 297 matching lines @@
 DEFINE_TRACE(EventPath)
 {
     visitor->trace(m_nodeEventContexts);
     visitor->trace(m_node);
     visitor->trace(m_event);
     visitor->trace(m_treeScopeEventContexts);
     visitor->trace(m_windowEventContext);
 }
 
 } // namespace blink