Lazy Parse CSS

third_party/WebKit/Source/core/css/parser/CSSTokenizer.h

Index: third_party/WebKit/Source/core/css/parser/CSSTokenizer.h
diff --git a/third_party/WebKit/Source/core/css/parser/CSSTokenizer.h b/third_party/WebKit/Source/core/css/parser/CSSTokenizer.h
index a8c2e91e44a28cfb984553719f8e21cda4198dbb..2b39495813698c1c757c1b0ebe74e4a2b9e27eb8 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSTokenizer.h
+++ b/third_party/WebKit/Source/core/css/parser/CSSTokenizer.h
@@ -33,11 +33,18 @@ public:
         CSSParserTokenRange tokenRange();
         unsigned tokenCount();
 
+        std::unique_ptr<Vector<String>> releaseEscapedStrings()
+        {
+            return std::move(m_stringPool);
+        }
+
     private:
-        void storeString(const String& string) { m_stringPool.append(string); }
+        void storeString(const String&);
         Vector<CSSParserToken, 32> m_tokens;
-        // We only allocate strings when escapes are used.
-        Vector<String> m_stringPool;
+
+        // We only allocate strings when escapes are used. This member is lazily
+        // initialized.
+        std::unique_ptr<Vector<String>> m_stringPool;
         String m_string;
 
         friend class CSSTokenizer;