DevTools: Fix test inspector-protocol/stylesheet-tracking-restart.html flakiness

Source/core/inspector/InspectorCSSAgent.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 499 matching lines @@
     bool isInitialFrontendLoad = styleSheetsUpdateType == InitialFrontendLoad;
 
     HashSet<CSSStyleSheet*>* documentCSSStyleSheets = m_documentToCSSStyleSheets.get(document);
     if (!documentCSSStyleSheets) {
         documentCSSStyleSheets = new HashSet<CSSStyleSheet*>();
         OwnPtr<HashSet<CSSStyleSheet*> > documentCSSStyleSheetsPtr = adoptPtr(documentCSSStyleSheets);
         m_documentToCSSStyleSheets.set(document, documentCSSStyleSheetsPtr.release());
     }
 
     HashSet<CSSStyleSheet*> removedSheets(*documentCSSStyleSheets);
-
-    HashSet<CSSStyleSheet*> addedSheets;
+    Vector<CSSStyleSheet*> addedSheets;
     for (Vector<CSSStyleSheet*>::const_iterator it = allSheetsVector.begin(); it != allSheetsVector.end(); ++it) {
         CSSStyleSheet* cssStyleSheet = *it;
         if (removedSheets.contains(cssStyleSheet)) {
             removedSheets.remove(cssStyleSheet);
             if (isInitialFrontendLoad)
-                addedSheets.add(cssStyleSheet);
+                addedSheets.append(cssStyleSheet);
         } else {
-            addedSheets.add(cssStyleSheet);
+            addedSheets.append(cssStyleSheet);
         }
     }
 
     for (HashSet<CSSStyleSheet*>::iterator it = removedSheets.begin(); it != removedSheets.end(); ++it) {
         CSSStyleSheet* cssStyleSheet = *it;
         RefPtr<InspectorStyleSheet> inspectorStyleSheet = m_cssStyleSheetToInspectorStyleSheet.get(cssStyleSheet);
         ASSERT(inspectorStyleSheet);
 
         documentCSSStyleSheets->remove(cssStyleSheet);
         if (m_idToInspectorStyleSheet.contains(inspectorStyleSheet->id())) {
             String id = unbindStyleSheet(inspectorStyleSheet.get());
             if (m_frontend && !isInitialFrontendLoad)
                 m_frontend->styleSheetRemoved(id);
         }
     }
 
-    for (HashSet<CSSStyleSheet*>::iterator it = addedSheets.begin(); it != addedSheets.end(); ++it) {
+    for (Vector<CSSStyleSheet*>::iterator it = addedSheets.begin(); it != addedSheets.end(); ++it) {
         CSSStyleSheet* cssStyleSheet = *it;
         bool isNew = isInitialFrontendLoad || !m_cssStyleSheetToInspectorStyleSheet.contains(cssStyleSheet);
         if (isNew) {
             InspectorStyleSheet* newStyleSheet = bindStyleSheet(cssStyleSheet);
             documentCSSStyleSheets->add(cssStyleSheet);
             if (m_frontend)
                 m_frontend->styleSheetAdded(newStyleSheet->buildObjectForStyleSheetInfo());
         }
     }
 
@@ skipping 837 matching lines @@
             documentsToChange.add(element->ownerDocument());
     }
 
     m_nodeIdToForcedPseudoState.clear();
     for (HashSet<Document*>::iterator it = documentsToChange.begin(), end = documentsToChange.end(); it != end; ++it)
         (*it)->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 } // namespace WebCore