Revert 154452 "Refactoring: Introduce ResouceLoaderHost interfac..."

trunk/Source/core/loader/DocumentLoader.cpp

Index: trunk/Source/core/loader/DocumentLoader.cpp
===================================================================
--- trunk/Source/core/loader/DocumentLoader.cpp	(revision 154456)
+++ trunk/Source/core/loader/DocumentLoader.cpp	(working copy)
@@ -302,9 +302,6 @@
 {
     ASSERT_UNUSED(resource, m_mainResource == resource);
     ASSERT(m_mainResource);
-
-    RefPtr<DocumentLoader> protect(this);
-
     if (!m_mainResource->errorOccurred() && !m_mainResource->wasCanceled()) {
         finishedLoading(m_mainResource->loadFinishTime());
         return;
@@ -873,7 +870,7 @@
     // Multiple frames may be loading the same main resource simultaneously. If deferral state changes,
     // each frame's DocumentLoader will try to send a setDefersLoading() to the same underlying ResourceLoader. Ensure only
     // the "owning" DocumentLoader does so, as setDefersLoading() is not resilient to setting the same value repeatedly.
-    if (mainResourceLoader() && mainResourceLoader()->isLoadedBy(m_cachedResourceLoader.get()))
+    if (mainResourceLoader() && mainResourceLoader()->documentLoader() == this)
         mainResourceLoader()->setDefersLoading(defers);
 
     setAllDefersLoading(m_resourceLoaders, defers);