[WebKit] Browsermark DomAdvSearch and DomSearch optimizations

        This patch is a combination of the following optimizations.

        Optimize appendCharactersReplacingEntities

        [Performance] Optimize innerHTML and outerHTML
        https://bugs.webkit.org/show_bug.cgi?id=81214

        Optimize Dromaeo/dom-query.html by caching NodeRareData on Document
        https://bugs.webkit.org/show_bug.cgi?id=90059

        Optimize Dromaeo/dom-attr.html by speeding up Element::getAttribute()
        https://bugs.webkit.org/show_bug.cgi?id=90174

        Change argument types of Element::getAttribute*() from String to AtomicString
        https://bugs.webkit.org/show_bug.cgi?id=90246

Conflicts:

	Source/WebCore/ChangeLog
	Source/WebCore/dom/Document.cpp
	Source/WebCore/dom/Document.h

Conflicts:

	Source/WebCore/ChangeLog

Change-Id: I9ca3d2e883155e2ad08c3cb0c5912b935ebe9406

1 files changed, 6 insertions, 1 deletions

diff --git a/Source/WebCore/dom/Document.h b/Source/WebCore/dom/Document.h
index 44f3f93..f94ce7a 100644
--- a/Source/WebCore/dom/Document.h
+++ b/Source/WebCore/dom/Document.h
@@ -104,6 +104,7 @@ class MediaQueryMatcher;
 class MouseEventWithHitTestResults;
 class NodeFilter;
 class NodeIterator;
+class NodeRareData;
 class Page;
 class PlatformMouseEvent;
 class ProcessingInstruction;
@@ -1109,12 +1110,14 @@ public:
 
     ContentSecurityPolicy* contentSecurityPolicy() { return m_contentSecurityPolicy.get(); }
 
+    NodeRareData* documentRareData() const { return m_documentRareData; };
+    void setDocumentRareData(NodeRareData* rareData) { m_documentRareData = rareData; }
+
 protected:
     Document(Frame*, const KURL&, bool isXHTML, bool isHTML);
 
     void clearXMLVersion() { m_xmlVersion = String(); }
 
-
 private:
     friend class IgnoreDestructiveWriteCountIncrementer;
 
@@ -1376,6 +1379,8 @@ private:
     
     RefPtr<EventQueue> m_eventQueue;
 
+    NodeRareData* m_documentRareData;
+
 #if ENABLE(WML)
     bool m_containsWMLContent;
 #endif