Do not block painting for in-body CSS

third_party/WebKit/Source/core/dom/Document.h

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index fd862518bb85da378c6eb1473ae0affad2dcde12..9005bc5f246448cb099aecee17c00c93e4daa6ba 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -374,8 +374,8 @@ public:
 
     bool sawElementsInKnownNamespaces() const { return m_sawElementsInKnownNamespaces; }
 
-    bool isRenderingReady() const { return haveImportsLoaded() && haveStylesheetsLoaded(); }
-    bool isScriptExecutionReady() const { return isRenderingReady(); }
+    bool isRenderingReady() const { return haveImportsLoaded() && haveRenderBlockingStylesheetsLoaded(); }
+    bool isScriptExecutionReady() const { return haveImportsLoaded() && haveStylesheetsLoaded(); }
 
     // This is a DOM function.
     StyleSheetList& styleSheets();
@@ -1152,6 +1152,7 @@ private:
     void clearFocusedElementTimerFired(Timer<Document>*);
 
     bool haveStylesheetsLoaded() const;
+    bool haveRenderBlockingStylesheetsLoaded() const;
     void styleResolverMayHaveChanged();
 
     void setHoverNode(Node*);