Trigger repaint on first paint only on pending stylesheet decrement.

third_party/WebKit/Source/core/inspector/InspectorStyleSheet.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 26 matching lines @@
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/CSSSupportsRule.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/StyleRule.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/css/parser/CSSParser.h"
 #include "core/css/parser/CSSParserObserver.h"
 #include "core/dom/DOMNodeIds.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
+#include "core/dom/StyleEngine.h"
 #include "core/html/HTMLStyleElement.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/inspector/IdentifiersFactory.h"
 #include "core/inspector/InspectorCSSAgent.h"
 #include "core/inspector/InspectorResourceAgent.h"
 #include "core/svg/SVGStyleElement.h"
 #include "platform/v8_inspector/public/V8ContentSearchUtil.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/StringBuilder.h"
@@ skipping 922 matching lines @@
         m_pageStyleSheet->clearChildRuleCSSOMWrappers();
     }
     {
         CSSStyleSheet::RuleMutationScope mutationScope(m_pageStyleSheet.get());
         m_pageStyleSheet->contents()->parseString(text);
     }
 
     if (listener())
         listener()->didReparseStyleSheet();
     onStyleSheetTextChanged();
-    m_pageStyleSheet->ownerDocument()->styleResolverChanged(FullStyleUpdate);
+    m_pageStyleSheet->ownerDocument()->styleEngine().resolverChanged(FullStyleUpdate);
     return true;
 }
 
 RefPtrWillBeRawPtr<CSSStyleRule> InspectorStyleSheet::setRuleSelector(const SourceRange& range, const String& text, SourceRange* newRange, String* oldText, ExceptionState& exceptionState)
 {
     if (!verifySelectorText(m_pageStyleSheet->ownerDocument(), text)) {
         exceptionState.throwDOMException(SyntaxError, "Selector or media text is not valid.");
         return nullptr;
     }
 
@@ skipping 783 matching lines @@
 }
 
 DEFINE_TRACE(InspectorStyleSheetForInlineStyle)
 {
     visitor->trace(m_element);
     visitor->trace(m_inspectorStyle);
     InspectorStyleSheetBase::trace(visitor);
 }
 
 } // namespace blink