Pause HTML parser for external stylesheets in the body

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

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index c4e9e772377ba78e4557a3c03de2c16574a396e8..f1b51eec6aca3870bf5344bf5824eb3450534a41 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -3339,12 +3339,19 @@ void Document::didLoadAllImports() {
   didLoadAllScriptBlockingResources();
 }
 
+void Document::didAddPendingStylesheetInBody() {
+  if (ScriptableDocumentParser* parser = scriptableDocumentParser())
+    parser->didAddPendingStylesheetInBody();
+}
+
 void Document::didRemoveAllPendingStylesheet() {
   styleResolverMayHaveChanged();
 
   // Only imports on master documents can trigger rendering.
   if (HTMLImportLoader* import = importLoader())
     import->didRemoveAllPendingStylesheet();
+  if (ScriptableDocumentParser* parser = scriptableDocumentParser())
+    parser->didLoadAllStylesheets();
   if (!haveImportsLoaded())
     return;
   didLoadAllScriptBlockingResources();