CSS Lazy Parsing perf jobs

third_party/WebKit/Source/core/css/StyleSheetContents.h

Index: third_party/WebKit/Source/core/css/StyleSheetContents.h
diff --git a/third_party/WebKit/Source/core/css/StyleSheetContents.h b/third_party/WebKit/Source/core/css/StyleSheetContents.h
index af8aad317e489eb079ee850efdd439f8f04e0e80..7b1a903564cb881ad8a05de849124834415ae2cf 100644
--- a/third_party/WebKit/Source/core/css/StyleSheetContents.h
+++ b/third_party/WebKit/Source/core/css/StyleSheetContents.h
@@ -31,6 +31,7 @@
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/TextPosition.h"
+#include "core/css/parser/CSSTokenizer.h"
 
 namespace blink {
 
@@ -172,6 +173,12 @@ class CORE_EXPORT StyleSheetContents
 
   String sourceMapURL() const { return m_sourceMapURL; }
 
+  void takeEscapedStrings(std::unique_ptr<Vector<String>> strings) {
+    m_escapedStrings.reset(strings.release());
+  }
+
+  CSSTokenizer::Scope m_scope;
+
   DECLARE_TRACE();
 
  private:
@@ -212,6 +219,14 @@ class CORE_EXPORT StyleSheetContents
 
   Member<RuleSet> m_ruleSet;
   String m_sourceMapURL;
+
+  // Used for retaining references to escaped strings for lazy parsing. For
+  // non-lazy parsing these are only retained in the CSSTokenizer::Scope.
+  std::unique_ptr<Vector<String>> m_escapedStrings;
+
+  // Only initialized if using lazy parsing. Also referenced on the css
+  // resource.
+  String m_sheetText;
 };
 
 }  // namespace blink