Remove minimumLayoutDelay() and associated machinery

Source/core/loader/DocumentWriter.cpp

 /*
  * Copyright (C) 2010. Adam Barth. 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. 
+ *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
+ *     documentation and/or other materials provided with the distribution.
  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
+ *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
@@ skipping 48 matching lines @@
     m_hasReceivedSomeData = true;
     m_document->setCompatibilityMode(Document::NoQuirksMode);
 
     // FIXME: This should call DocumentParser::appendBytes instead of append
     // to support RawDataDocumentParsers.
     if (DocumentParser* parser = m_document->parser()) {
         parser->pinToMainThread();
         // Because we're pinned to the main thread we don't need to worry about
         // passing ownership of the source string.
         parser->append(source.impl());
+        // NOTE: Even though we're pinned to the main thread, script execution
+        // may still cause the parser to yield. We may not be done parsing
+        // the new source yet!
     }
 }
 
 void DocumentWriter::reportDataReceived()
 {
     ASSERT(m_decoder);
     if (m_hasReceivedSomeData)
         return;
     m_hasReceivedSomeData = true;
     if (m_decoder->encoding().usesVisualOrdering())
@@ skipping 10 matching lines @@
     size_t consumedChars = m_parser->appendBytes(bytes, length);
     if (consumedChars)
         reportDataReceived();
 }
 
 void DocumentWriter::end()
 {
     ASSERT(m_document);
 
     // http://bugs.webkit.org/show_bug.cgi?id=10854
-    // The frame's last ref may be removed and it can be deleted by checkCompleted(), 
+    // The frame's last ref may be removed and it can be deleted by checkCompleted(),
     // so we'll add a protective refcount
     RefPtr<Frame> protector(m_document->frame());
 
     if (!m_parser)
         return;
 
     if (!m_decoder && m_parser->needsDecoder())
         m_decoder = m_decoderBuilder.buildFor(m_document);
     // flush() can result replacing DocumentLoader::m_writer.
     RefPtr<DocumentWriter> protectingThis(this);
     size_t consumedChars = m_parser->flush();
     if (consumedChars)
         reportDataReceived();
     if (!m_parser)
         return;
 
     m_parser->finish();
     m_parser = 0;
     m_document = 0;
 }
 
 void DocumentWriter::setDocumentWasLoadedAsPartOfNavigation()
 {
     ASSERT(m_parser && !m_parser->isStopped());
     m_parser->setDocumentWasLoadedAsPartOfNavigation();
 }
 
 } // namespace WebCore