Remove the concept of document.documentElement

sky/engine/core/frame/NewEventHandler.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/frame/NewEventHandler.h"
 
 #include "sky/engine/core/dom/Document.h"
 #include "sky/engine/core/dom/NodeRenderingTraversal.h"
 #include "sky/engine/core/editing/Editor.h"
@@ skipping 36 matching lines @@
 
 NewEventHandler::~NewEventHandler()
 {
 }
 
 Node* NewEventHandler::targetForKeyboardEvent() const
 {
     Document* document = m_frame.document();
     if (Node* focusedElement = document->focusedElement())
         return focusedElement;
-    return document->documentElement();
+    return document;
 }
 
 Node* NewEventHandler::targetForHitTestResult(const HitTestResult& hitTestResult)
 {
     Node* node = hitTestResult.innerNode();
     if (!node)
-        return m_frame.document()->documentElement();
+        return m_frame.document();
     if (node->isTextNode())
         return NodeRenderingTraversal::parent(node);
     return node;
 }
 
 HitTestResult NewEventHandler::performHitTest(const LayoutPoint& point)
 {
     HitTestResult result(point);
     if (!m_frame.contentRenderer())
         return result;
@@ skipping 169 matching lines @@
     auto it = m_stateForPointer.find(event.pointer);
     if (it == m_stateForPointer.end())
         return false;
     PointerState stateCopy = it->second;
     m_stateForPointer.erase(it);
     ASSERT(stateCopy.target);
     return dispatchPointerEvent(stateCopy, event);
 }
 
 }