[import] support document.stylesheets in imported documents.

Source/core/dom/DocumentStyleSheetCollector.cpp

Index: Source/core/dom/DocumentStyleSheetCollector.cpp
diff --git a/Source/core/dom/DocumentStyleSheetCollector.cpp b/Source/core/dom/DocumentStyleSheetCollector.cpp
index a25d824dd4decd270d4931135a38af142cb93a4d..286e8c70fa636e54397df1d981e52c9da44601cc 100644
--- a/Source/core/dom/DocumentStyleSheetCollector.cpp
+++ b/Source/core/dom/DocumentStyleSheetCollector.cpp
@@ -27,18 +27,39 @@
 #include "config.h"
 #include "core/dom/DocumentStyleSheetCollector.h"
 
-#include "core/dom/Document.h"
+#include "core/css/CSSStyleSheet.h"
+#include "core/css/StyleSheet.h"
 
 namespace WebCore {
 
-bool DocumentStyleSheetCollector::isCollectingForList(TreeScope& scope) const
+DocumentStyleSheetCollector::DocumentStyleSheetCollector(Vector<RefPtr<StyleSheet> >& sheetsForList, Vector<RefPtr<CSSStyleSheet> >& activeList)
+    : m_styleSheetsForStyleSheetList(sheetsForList)
+    , m_activeAuthorStyleSheets(activeList)
 {
-    return m_root == scope;
 }
 
-void DocumentStyleSheetCollector::setCollectionTo(StyleSheetCollectionBase& collection)
+DocumentStyleSheetCollector::~DocumentStyleSheetCollector()
 {
-    m_collection.swap(collection);
+}
+
+DocumentStyleSheetCollector DocumentStyleSheetCollector::subcollectorWith(Vector<RefPtr<StyleSheet> >& sheetsForList) const
+{
+    return DocumentStyleSheetCollector(sheetsForList, m_activeAuthorStyleSheets);
+}
+
+void DocumentStyleSheetCollector::appendActiveStyleSheets(const Vector<RefPtr<CSSStyleSheet> >& sheets)
+{
+    m_activeAuthorStyleSheets.append(sheets);
+}
+
+void DocumentStyleSheetCollector::appendActiveStyleSheet(CSSStyleSheet* sheet)
+{
+    m_activeAuthorStyleSheets.append(sheet);
+}
+
+void DocumentStyleSheetCollector::appendSheetForList(StyleSheet* sheet)
+{
+    m_styleSheetsForStyleSheetList.append(sheet);
 }
 
 }