introduce DocumentParserClient to receive parser stopped notification

Source/core/html/imports/HTMLImportLoader.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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * 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 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/html/imports/HTMLImportLoader.h"
 
 #include "core/dom/Document.h"
+#include "core/dom/DocumentParser.h"
 #include "core/dom/StyleEngine.h"
 #include "core/dom/custom/CustomElementSyncMicrotaskQueue.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/imports/HTMLImportChild.h"
 #include "core/html/imports/HTMLImportsController.h"
 #include "core/loader/DocumentWriter.h"
 #include "platform/network/ContentSecurityPolicyResponseHeaders.h"
 
 
 namespace blink {
@@ skipping 64 matching lines @@
 }
 
 HTMLImportLoader::State HTMLImportLoader::startWritingAndParsing(const ResourceResponse& response)
 {
     ASSERT(!m_imports.isEmpty());
     DocumentInit init = DocumentInit(response.url(), 0, m_controller->master()->contextDocument(), m_controller)
         .withRegistrationContext(m_controller->master()->registrationContext());
     m_document = HTMLDocument::create(init);
     m_writer = DocumentWriter::create(m_document.get(), response.mimeType(), "UTF-8");
 
+    DocumentParser* parser = m_document->parser();
+    ASSERT(parser);
+    parser->addClient(this);
+
     return StateLoading;
 }
 
 HTMLImportLoader::State HTMLImportLoader::finishWriting()
 {
     return StateWritten;
 }
 
 HTMLImportLoader::State HTMLImportLoader::finishParsing()
 {
@@ skipping 15 matching lines @@
     if (m_state == StateParsed || m_state == StateError || m_state == StateWritten) {
         if (RefPtrWillBeRawPtr<DocumentWriter> writer = m_writer.release())
             writer->end();
     }
 
     // Since DocumentWriter::end() can let setState() reenter, we shouldn't refer to m_state here.
     if (state == StateLoaded || state == StateError)
         didFinishLoading();
 }
 
-void HTMLImportLoader::didFinishParsing()
+void HTMLImportLoader::notifyParserStopped()
 {
     setState(finishParsing());
     if (!hasPendingResources())
         setState(finishLoading());
+
+    DocumentParser* parser = m_document->parser();
+    ASSERT(parser);
+    parser->removeClient(this);
 }
 
 void HTMLImportLoader::didRemoveAllPendingStylesheet()
 {
     if (m_state == StateParsed)
         setState(finishLoading());
 }
 
 bool HTMLImportLoader::hasPendingResources() const
 {
@@ skipping 51 matching lines @@
     visitor->trace(m_controller);
 #if ENABLE(OILPAN)
     visitor->trace(m_imports);
 #endif
     visitor->trace(m_document);
     visitor->trace(m_writer);
     visitor->trace(m_microtaskQueue);
 }
 
 } // namespace blink