One instead of three resolverChanged replacing source in inspector.

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 948 matching lines @@
         return pageStyleSheet->contents()->baseURL().string();
     return emptyString();
 }
 
 String InspectorStyleSheet::finalURL()
 {
     String url = styleSheetURL(m_pageStyleSheet.get());
     return url.isEmpty() ? m_documentURL : url;
 }
 
-bool InspectorStyleSheet::setText(const String& text, ExceptionState& exceptionState)
+bool InspectorStyleSheet::setText(const String& text, ExceptionState&)
 {
     innerSetText(text, true);
 
     if (listener())
         listener()->willReparseStyleSheet();
 
-    {
-        // Have a separate scope for clearRules() (bug 95324).
-        CSSStyleSheet::RuleMutationScope mutationScope(m_pageStyleSheet.get());
-        m_pageStyleSheet->contents()->clearRules();
-        m_pageStyleSheet->clearChildRuleCSSOMWrappers();
-    }
-    {
-        CSSStyleSheet::RuleMutationScope mutationScope(m_pageStyleSheet.get());
-        m_pageStyleSheet->contents()->parseString(text);
-    }
+    m_pageStyleSheet->setText(text);
 
     if (listener())
         listener()->didReparseStyleSheet();
     onStyleSheetTextChanged();
-    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 785 matching lines @@
 }
 
 DEFINE_TRACE(InspectorStyleSheetForInlineStyle)
 {
     visitor->trace(m_element);
     visitor->trace(m_inspectorStyle);
     InspectorStyleSheetBase::trace(visitor);
 }
 
 } // namespace blink