| Index: Source/core/css/DocumentRuleSets.cpp
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| diff --git a/Source/core/css/DocumentRuleSets.cpp b/Source/core/css/DocumentRuleSets.cpp
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| index ca2cc211b42223f11f531972cb2f7d88b4bdef6a..a06cc2ad55fdeb20788f79c7b7fe66366defe794 100644
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| --- a/Source/core/css/DocumentRuleSets.cpp
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| +++ b/Source/core/css/DocumentRuleSets.cpp
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| @@ -81,7 +81,7 @@ void DocumentRuleSets::initUserStyle(DocumentStyleSheetCollection* styleSheetCol
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|          tempUserStyle->addRulesFromSheet(pageUserSheet->contents(), medium, &resolver);
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|      collectRulesFromUserStyleSheets(styleSheetCollection->injectedUserStyleSheets(), *tempUserStyle, medium, resolver);
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|      collectRulesFromUserStyleSheets(styleSheetCollection->documentUserStyleSheets(), *tempUserStyle, medium, resolver);
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| -    if (tempUserStyle->ruleCount() > 0 || tempUserStyle->pageRules().size() > 0)
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| +    if (tempUserStyle->ruleCount() > 0 || tempUserStyle->pageRules().size() > 0 || tempUserStyle->viewportRules().size() > 0)
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|          m_userStyle = tempUserStyle.release();
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|  }
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|  
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| 
 |