Lazy Parse CSS

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

Index: third_party/WebKit/Source/core/css/parser/CSSParser.h
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParser.h b/third_party/WebKit/Source/core/css/parser/CSSParser.h
index e15b17a482abaa4c6c969540c070b723bfbdbb84..f64bfb50c54ab26ca4eeef3889edcb02d6546e24 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSParser.h
+++ b/third_party/WebKit/Source/core/css/parser/CSSParser.h
@@ -8,8 +8,10 @@
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/css/CSSValue.h"
+#include "core/css/StylePropertySet.h"
 #include "core/css/parser/CSSParserMode.h"
 #include "platform/graphics/Color.h"
+#include "wtf/Functional.h"
 #include <memory>
 
 namespace blink {
@@ -29,9 +31,11 @@ class StyleSheetContents;
 class CORE_EXPORT CSSParser {
     STATIC_ONLY(CSSParser);
 public:
+    typedef Function<StylePropertySet*(), WTF::SameThreadAffinity> DeferredPropertiesClosure;
+
     // As well as regular rules, allows @import and @namespace but not @charset
     static StyleRuleBase* parseRule(const CSSParserContext&, StyleSheetContents*, const String&);
-    static void parseSheet(const CSSParserContext&, StyleSheetContents*, const String&);
+    static void parseSheet(const CSSParserContext&, StyleSheetContents*, const String&, bool deferPropertyParsing = false);
     static CSSSelectorList parseSelector(const CSSParserContext&, StyleSheetContents*, const String&);
     static CSSSelectorList parsePageSelector(const CSSParserContext&, StyleSheetContents*, const String&);
     static bool parseDeclarationList(const CSSParserContext&, MutableStylePropertySet*, const String&);