Make sure StyleResolver sets viewport before initializing HTMLPreloadScanner

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

Index: third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp
index 80f5c230a6944b5491b1c1372e8246f6ea88a9bc..eb7792f2c7c69f605775427e9224eb63bfa1596d 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp
@@ -778,6 +778,9 @@ void HTMLDocumentParser::startBackgroundParser()
     ASSERT(document());
     m_haveBackgroundParser = true;
 
+    // Make sure that a resolver is set up, so that the correct viewport dimensions will be fed to the background parser and preload scanner.
+    document()->ensureStyleResolver();
+
     RefPtr<WeakReference<BackgroundHTMLParser>> reference = WeakReference<BackgroundHTMLParser>::createUnbound();
     m_backgroundParser = WeakPtr<BackgroundHTMLParser>(reference);
 
@@ -792,6 +795,7 @@ void HTMLDocumentParser::startBackgroundParser()
     config->parser = m_weakFactory.createWeakPtr();
     config->xssAuditor = adoptPtr(new XSSAuditor);
     config->xssAuditor->init(document(), &m_xssAuditorDelegate);
+

[bokan, 2015/10/22 16:56:46]

Nit: Remove extra space?

     config->preloadScanner = adoptPtr(new TokenPreloadScanner(document()->url().copy(), CachedDocumentParameters::create(document())));
     config->decoder = takeDecoder();
     if (document()->settings()) {