Refactor HTMLTreeBuilder/HTMLConstructionSite ctor

third_party/WebKit/Source/core/html/parser/HTMLConstructionSite.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 295 matching lines @@
     // re-enters the parser.
     TaskQueue queue;
     queue.swap(m_taskQueue);
 
     for (size_t i = 0; i < size; ++i)
         executeTask(queue[i]);
 
     // We might be detached now.
 }
 
-HTMLConstructionSite::HTMLConstructionSite(Document* document, ParserContentPolicy parserContentPolicy)
-    : m_document(document)
+HTMLConstructionSite::HTMLConstructionSite(Document& document, ParserContentPolicy parserContentPolicy)
+    : m_document(&document)
     , m_attachmentRoot(document)
     , m_parserContentPolicy(parserContentPolicy)
     , m_isParsingFragment(false)
     , m_redirectAttachToFosterParent(false)
-    , m_inQuirksMode(document->inQuirksMode())
+    , m_inQuirksMode(document.inQuirksMode())
 {
     ASSERT(m_document->isHTMLDocument() || m_document->isXHTMLDocument());
 }
 
-HTMLConstructionSite::HTMLConstructionSite(DocumentFragment* fragment, ParserContentPolicy parserContentPolicy)
-    : m_document(&fragment->document())
-    , m_attachmentRoot(fragment)
-    , m_parserContentPolicy(parserContentPolicy)
-    , m_isParsingFragment(true)
-    , m_redirectAttachToFosterParent(false)
-    , m_inQuirksMode(fragment->document().inQuirksMode())
+void HTMLConstructionSite::initFragmentParsing(DocumentFragment* fragment)
 {
-    ASSERT(m_document->isHTMLDocument() || m_document->isXHTMLDocument());
+    DCHECK_EQ(m_document, &fragment->document());
+    DCHECK_EQ(m_inQuirksMode, fragment->document().inQuirksMode());
+    DCHECK(!m_isParsingFragment);
+
+    m_attachmentRoot = fragment;
+    m_isParsingFragment = true;
 }
 
 HTMLConstructionSite::~HTMLConstructionSite()
 {
     // Depending on why we're being destroyed it might be OK
     // to forget queued tasks, but currently we don't expect to.
     ASSERT(m_taskQueue.isEmpty());
     // Currently we assume that text will never be the last token in the
     // document and that we'll always queue some additional task to cause it to flush.
     ASSERT(m_pendingText.isEmpty());
@@ skipping 529 matching lines @@
     queueTask(task);
 }
 
 DEFINE_TRACE(HTMLConstructionSite::PendingText)
 {
     visitor->trace(parent);
     visitor->trace(nextChild);
 }
 
 } // namespace blink