From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001
From: Lorry Tar Creator <lorry-tar-importer@lorry>
Date: Tue, 27 Jun 2017 06:07:23 +0000
Subject: webkitgtk-2.16.5

---
 Source/WebCore/html/parser/HTMLParserScheduler.cpp | 27 ++++------------------
 1 file changed, 4 insertions(+), 23 deletions(-)

(limited to 'Source/WebCore/html/parser/HTMLParserScheduler.cpp')

diff --git a/Source/WebCore/html/parser/HTMLParserScheduler.cpp b/Source/WebCore/html/parser/HTMLParserScheduler.cpp
index 974fcbec9..28337d86d 100644
--- a/Source/WebCore/html/parser/HTMLParserScheduler.cpp
+++ b/Source/WebCore/html/parser/HTMLParserScheduler.cpp
@@ -32,11 +32,6 @@
 #include "HTMLDocumentParser.h"
 #include "Page.h"
 
-// defaultParserChunkSize is used to define how many tokens the parser will
-// process before checking against parserTimeLimit and possibly yielding.
-// This is a performance optimization to prevent checking after every token.
-static const int defaultParserChunkSize = 4096;
-
 // defaultParserTimeLimit is the seconds the parser will run in one write() call
 // before yielding. Inline <script> execution can cause it to exceed the limit.
 // FIXME: We would like this value to be 0.2.
@@ -52,16 +47,6 @@ static double parserTimeLimit(Page* page)
     return defaultParserTimeLimit;
 }
 
-static int parserChunkSize(Page* page)
-{
-    // FIXME: We may need to divide the value from customHTMLTokenizerChunkSize
-    // by some constant to translate from the "character" based behavior of the
-    // old LegacyHTMLDocumentParser to the token-based behavior of this parser.
-    if (page && page->hasCustomHTMLTokenizerChunkSize())
-        return page->customHTMLTokenizerChunkSize();
-    return defaultParserChunkSize;
-}
-
 ActiveParserSession::ActiveParserSession(Document* document)
     : m_document(document)
 {
@@ -85,7 +70,6 @@ PumpSession::PumpSession(unsigned& nestingLevel, Document* document)
     // At that time we'll initialize startTime.
     , processedTokens(INT_MAX)
     , startTime(0)
-    , needsYield(false)
     , didSeeScript(false)
 {
 }
@@ -97,8 +81,7 @@ PumpSession::~PumpSession()
 HTMLParserScheduler::HTMLParserScheduler(HTMLDocumentParser& parser)
     : m_parser(parser)
     , m_parserTimeLimit(parserTimeLimit(m_parser.document()->page()))
-    , m_parserChunkSize(parserChunkSize(m_parser.document()->page()))
-    , m_continueNextChunkTimer(this, &HTMLParserScheduler::continueNextChunkTimerFired)
+    , m_continueNextChunkTimer(*this, &HTMLParserScheduler::continueNextChunkTimerFired)
     , m_isSuspendedWithActiveTimer(false)
 #if !ASSERT_DISABLED
     , m_suspended(false)
@@ -111,10 +94,9 @@ HTMLParserScheduler::~HTMLParserScheduler()
     m_continueNextChunkTimer.stop();
 }
 
-void HTMLParserScheduler::continueNextChunkTimerFired(Timer<HTMLParserScheduler>& timer)
+void HTMLParserScheduler::continueNextChunkTimerFired()
 {
     ASSERT(!m_suspended);
-    ASSERT_UNUSED(timer, &timer == &m_continueNextChunkTimer);
 
     // FIXME: The timer class should handle timer priorities instead of this code.
     // If a layout is scheduled, wait again to let the layout timer run first.
@@ -125,15 +107,14 @@ void HTMLParserScheduler::continueNextChunkTimerFired(Timer<HTMLParserScheduler>
     m_parser.resumeParsingAfterYield();
 }
 
-void HTMLParserScheduler::checkForYieldBeforeScript(PumpSession& session)
+bool HTMLParserScheduler::shouldYieldBeforeExecutingScript(PumpSession& session)
 {
     // If we've never painted before and a layout is pending, yield prior to running
     // scripts to give the page a chance to paint earlier.
     Document* document = m_parser.document();
     bool needsFirstPaint = document->view() && !document->view()->hasEverPainted();
-    if (needsFirstPaint && document->isLayoutTimerActive())
-        session.needsYield = true;
     session.didSeeScript = true;
+    return needsFirstPaint && document->isLayoutTimerActive();
 }
 
 void HTMLParserScheduler::scheduleForResume()
-- 
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