Revert of BackgroundHTMLParser: Introduce ParsedChunkQueue to pass ParsedChunks to main thread

third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 89 matching lines @@
     , m_treeBuilderSimulator(config->options)
     , m_options(config->options)
     , m_outstandingTokenLimit(config->outstandingTokenLimit)
     , m_parser(config->parser)
     , m_pendingTokens(adoptPtr(new CompactHTMLTokenStream))
     , m_pendingTokenLimit(config->pendingTokenLimit)
     , m_xssAuditor(config->xssAuditor.release())
     , m_preloadScanner(config->preloadScanner.release())
     , m_decoder(config->decoder.release())
     , m_loadingTaskRunner(loadingTaskRunner)
-    , m_parsedChunkQueue(config->parsedChunkQueue)
     , m_startingScript(false)
 {
     ASSERT(m_outstandingTokenLimit > 0);
     ASSERT(m_pendingTokenLimit > 0);
     ASSERT(m_outstandingTokenLimit >= m_pendingTokenLimit);
 }
 
 BackgroundHTMLParser::~BackgroundHTMLParser()
 {
 }
@@ skipping 50 matching lines @@
 
 void BackgroundHTMLParser::resumeFrom(PassOwnPtr<Checkpoint> checkpoint)
 {
     m_parser = checkpoint->parser;
     m_token = checkpoint->token.release();
     m_tokenizer = checkpoint->tokenizer.release();
     m_treeBuilderSimulator.setState(checkpoint->treeBuilderState);
     m_input.rewindTo(checkpoint->inputCheckpoint, checkpoint->unparsedInput);
     m_preloadScanner->rewindTo(checkpoint->preloadScannerCheckpoint);
     m_startingScript = false;
-    m_parsedChunkQueue->clear();
     pumpTokenizer();
 }
 
 void BackgroundHTMLParser::startedChunkWithCheckpoint(HTMLInputCheckpoint inputCheckpoint)
 {
     // Note, we should not have to worry about the index being invalid
     // as messages from the main thread will be processed in FIFO order.
     m_input.invalidateCheckpointsBefore(inputCheckpoint);
     pumpTokenizer();
 }
@@ skipping 94 matching lines @@
     chunk->preloads.swap(m_pendingPreloads);
     chunk->xssInfos.swap(m_pendingXSSInfos);
     chunk->tokenizerState = m_tokenizer->state();
     chunk->treeBuilderState = m_treeBuilderSimulator.state();
     chunk->inputCheckpoint = m_input.createCheckpoint(m_pendingTokens->size());
     chunk->preloadScannerCheckpoint = m_preloadScanner->createCheckpoint();
     chunk->tokens = m_pendingTokens.release();
     chunk->startingScript = m_startingScript;
     m_startingScript = false;
 
-    bool isEmpty = m_parsedChunkQueue->enqueue(chunk.release());
-    if (isEmpty) {
-        m_loadingTaskRunner->postTask(
-            BLINK_FROM_HERE,
-            new Task(threadSafeBind(&HTMLDocumentParser::notifyPendingParsedChunks, AllowCrossThreadAccess(m_parser))));
-    }
+    m_loadingTaskRunner->postTask(
+        BLINK_FROM_HERE,
+        new Task(threadSafeBind(&HTMLDocumentParser::didReceiveParsedChunkFromBackgroundParser, AllowCrossThreadAccess(m_parser), chunk.release())));
 
     m_pendingTokens = adoptPtr(new CompactHTMLTokenStream);
 }
 
 }