CSS Lazy Parsing perf jobs

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

Index: third_party/WebKit/Source/core/css/StyleSheetContents.cpp
diff --git a/third_party/WebKit/Source/core/css/StyleSheetContents.cpp b/third_party/WebKit/Source/core/css/StyleSheetContents.cpp
index 6d642af4888d5b79bc5cac7c863150036f994e5a..b49e51c69c871df852e2c316dde0a8bd0b2b701c 100644
--- a/third_party/WebKit/Source/core/css/StyleSheetContents.cpp
+++ b/third_party/WebKit/Source/core/css/StyleSheetContents.cpp
@@ -86,7 +86,11 @@ StyleSheetContents::StyleSheetContents(const StyleSheetContents& o)
       m_hasMediaQueries(o.m_hasMediaQueries),
       m_hasSingleOwnerDocument(true),
       m_isUsedFromTextCache(false),
-      m_parserContext(o.m_parserContext) {
+      m_parserContext(o.m_parserContext),
+      m_escapedStrings(o.m_escapedStrings
+                           ? new Vector<String>(*o.m_escapedStrings)
+                           : nullptr),
+      m_sheetText(o.m_sheetText) {
   // FIXME: Copy import rules.
   ASSERT(o.m_importRules.isEmpty());
 
@@ -340,6 +344,8 @@ void StyleSheetContents::parseAuthorStyleSheet(
           ? CSSStyleSheetResource::MIMETypeCheck::Lax
           : CSSStyleSheetResource::MIMETypeCheck::Strict;
   String sheetText = cachedStyleSheet->sheetText(mimeTypeCheck);
+  if (true || RuntimeEnabledFeatures::lazyParseCSSEnabled())
+    m_sheetText = sheetText;
 
   const ResourceResponse& response = cachedStyleSheet->response();
   m_sourceMapURL = response.httpHeaderField(HTTPNames::SourceMap);
@@ -349,7 +355,8 @@ void StyleSheetContents::parseAuthorStyleSheet(
   }
 
   CSSParserContext context(parserContext(), UseCounter::getFrom(this));
-  CSSParser::parseSheet(context, this, sheetText);
+  CSSParser::parseSheet(context, this, sheetText,
+                        true || RuntimeEnabledFeatures::lazyParseCSSEnabled());
 }
 
 void StyleSheetContents::parseString(const String& sheetText) {
@@ -476,7 +483,7 @@ static bool childRulesHaveFailedOrCanceledSubresources(
     const StyleRuleBase* rule = rules[i].get();
     switch (rule->type()) {
       case StyleRuleBase::Style:
-        if (toStyleRule(rule)->properties().hasFailedOrCanceledSubresources())
+        if (toStyleRule(rule)->propertiesHaveFailedOrCanceledSubresources())
           return true;
         break;
       case StyleRuleBase::FontFace: