Delete StyleSheetList and support code.

sky/engine/core/dom/DocumentStyleSheetCollection.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 12 matching lines @@
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/dom/DocumentStyleSheetCollection.h"
 
 #include "gen/sky/platform/RuntimeEnabledFeatures.h"
 #include "sky/engine/core/css/resolver/StyleResolver.h"
 #include "sky/engine/core/dom/Document.h"
-#include "sky/engine/core/dom/DocumentStyleSheetCollector.h"
 #include "sky/engine/core/dom/StyleEngine.h"
-#include "sky/engine/core/dom/StyleSheetCandidate.h"
+#include "sky/engine/core/html/HTMLStyleElement.h"
 
 namespace blink {
 
 DocumentStyleSheetCollection::DocumentStyleSheetCollection(TreeScope& treeScope)
     : TreeScopeStyleSheetCollection(treeScope)
 {
     ASSERT(treeScope.rootNode() == treeScope.rootNode().document());
 }
 
-void DocumentStyleSheetCollection::collectStyleSheetsFromCandidates(StyleEngine* engine, DocumentStyleSheetCollector& collector)
+void DocumentStyleSheetCollection::collectStyleSheetsFromCandidates(StyleEngine* engine, StyleSheetCollection& collection)
 {
     DocumentOrderedList::iterator begin = m_styleSheetCandidateNodes.begin();
     DocumentOrderedList::iterator end = m_styleSheetCandidateNodes.end();
     for (DocumentOrderedList::iterator it = begin; it != end; ++it) {
-        Node* n = *it;
-        StyleSheetCandidate candidate(*n);
-
-        CSSStyleSheet* sheet = candidate.sheet();
-        if (!sheet)
+        Node* node = *it;
+        if (!isHTMLStyleElement(*node))

[ojan, 2014/12/12 23:38:39]

Nit: This could be an assert.

             continue;
-
-        collector.appendSheetForList(sheet);
-        if (candidate.canBeActivated())
-            collector.appendActiveStyleSheet(sheet);
+        if (CSSStyleSheet* sheet = toHTMLStyleElement(node)->sheet())
+            collection.appendActiveStyleSheet(sheet);
     }
 }
 
-void DocumentStyleSheetCollection::collectStyleSheets(StyleEngine* engine, DocumentStyleSheetCollector& collector)
+void DocumentStyleSheetCollection::collectStyleSheets(StyleEngine* engine, StyleSheetCollection& collection)
 {
     ASSERT(document().styleEngine() == engine);
-    collector.appendActiveStyleSheets(engine->documentAuthorStyleSheets());
-    collectStyleSheetsFromCandidates(engine, collector);
+    collection.appendActiveStyleSheets(engine->documentAuthorStyleSheets());
+    collectStyleSheetsFromCandidates(engine, collection);
 }
 
 void DocumentStyleSheetCollection::updateActiveStyleSheets(StyleEngine* engine)
 {
     StyleSheetCollection collection;
-    ActiveDocumentStyleSheetCollector collector(collection);
-    collectStyleSheets(engine, collector);
+    collectStyleSheets(engine, collection);
 
     engine->clearMasterResolver();
     // FIMXE: The following depends on whether StyleRuleFontFace was modified or not.
     // No need to always-clear font cache.
     engine->clearFontCache();
 
     // TODO(esprehn): This is terrible and not needed in Sky, we should mark
     // specific tree scopes dirty instead.
     document().setNeedsStyleRecalc(SubtreeStyleChange);
 
     collection.swap(*this);
 
     updateUsesRemUnits();
 }
 
 }