[import] Refactoring: Get rid of BlockedFromCreatingDocument state

Source/core/html/HTMLImportChild.cpp

Index: Source/core/html/HTMLImportChild.cpp
diff --git a/Source/core/html/HTMLImportChild.cpp b/Source/core/html/HTMLImportChild.cpp
index a708092dbbb3ac1db801ce5b7ddf10176ea28769..93d9c7fa13affc0eb8e887717b7ec6f546fe4f3e 100644
--- a/Source/core/html/HTMLImportChild.cpp
+++ b/Source/core/html/HTMLImportChild.cpp
@@ -69,8 +69,8 @@ void HTMLImportChild::wasAlreadyLoaded()
     ASSERT(!m_loader);
     ASSERT(m_clients.size());
 
-    loaderWasResolved();
     ensureLoader();
+    loaderWasResolved();
 }
 
 void HTMLImportChild::startLoading(const ResourcePtr<RawResource>& resource)
@@ -161,7 +161,6 @@ void HTMLImportChild::didFinishParsing()
 void HTMLImportChild::didUnblockFromCreatingDocument()
 {
     HTMLImport::didUnblockFromCreatingDocument();
-    ASSERT(!m_loader || !m_loader->isOwnedBy(this));
     ensureLoader();
 }
 
@@ -204,6 +203,11 @@ bool HTMLImportChild::isDone() const
     return m_loader && m_loader->isDone();
 }
 
+bool HTMLImportChild::hasLoader() const
+{
+    return m_loader;
+}
+
 bool HTMLImportChild::ownsLoader() const
 {
     return m_loader->isOwnedBy(this);