remove memoryinstrumentation

Source/core/dom/DocumentStyleSheetCollection.cpp

Index: Source/core/dom/DocumentStyleSheetCollection.cpp
diff --git a/Source/core/dom/DocumentStyleSheetCollection.cpp b/Source/core/dom/DocumentStyleSheetCollection.cpp
index 3b57964baa45fac1aabb3d5551359a4cd06f061b..a42e32d1910a50fb1e060381d7814b3d811296e7 100644
--- a/Source/core/dom/DocumentStyleSheetCollection.cpp
+++ b/Source/core/dom/DocumentStyleSheetCollection.cpp
@@ -48,9 +48,6 @@
 #include "StyleSheetContents.h"
 #include "StyleSheetList.h"
 #include "UserContentURLPattern.h"
-#include "WebCoreMemoryInstrumentation.h"
-#include <wtf/MemoryInstrumentationListHashSet.h>
-#include <wtf/MemoryInstrumentationVector.h>
 
 namespace WebCore {
 
@@ -489,20 +486,4 @@ bool DocumentStyleSheetCollection::updateActiveStyleSheets(UpdateFlag updateFlag
     return requiresFullStyleRecalc;
 }
 
-void DocumentStyleSheetCollection::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
-    info.addMember(m_pageUserSheet, "pageUserSheet");
-    info.addMember(m_injectedUserStyleSheets, "injectedUserStyleSheets");
-    info.addMember(m_injectedAuthorStyleSheets, "injectedAuthorStyleSheets");
-    info.addMember(m_userStyleSheets, "userStyleSheets");
-    info.addMember(m_authorStyleSheets, "authorStyleSheets");
-    info.addMember(m_activeAuthorStyleSheets, "activeAuthorStyleSheets");
-    info.addMember(m_styleSheetsForStyleSheetList, "styleSheetsForStyleSheetList");
-    info.addMember(m_styleSheetCandidateNodes, "styleSheetCandidateNodes");
-    info.addMember(m_preferredStylesheetSetName, "preferredStylesheetSetName");
-    info.addMember(m_selectedStylesheetSetName, "selectedStylesheetSetName");
-    info.addMember(m_document, "document");
-}
-
 }