Redirect HTML resource bytes directly to parser thread (Blink side CL)

Source/core/loader/DocumentLoader.cpp

Index: Source/core/loader/DocumentLoader.cpp
diff --git a/Source/core/loader/DocumentLoader.cpp b/Source/core/loader/DocumentLoader.cpp
index 4c2f53a150ae65b4282d22cd8b48ba45415ea68a..698e6b8151a141cf5e61febd7946b77a8dd9542e 100644
--- a/Source/core/loader/DocumentLoader.cpp
+++ b/Source/core/loader/DocumentLoader.cpp
@@ -780,6 +780,12 @@ void DocumentLoader::cancelMainResourceLoad(const ResourceError& resourceError)
     mainReceivedError(error);
 }
 
+void DocumentLoader::attachThreadedDataReceiver(blink::WebThreadedDataReceiver* threadedDataReceiver)
+{
+    if (mainResourceLoader())

[abarth-chromium, 2014/03/10 21:52:20]

Should it be an error to call this function without a mainResourceLoader()? 
What does the caller expect to happen in that case?

+        mainResourceLoader()->attachThreadedDataReceiver(threadedDataReceiver);
+}
+
 void DocumentLoader::endWriting(DocumentWriter* writer)
 {
     ASSERT_UNUSED(writer, m_writer == writer);