Index: Source/core/css/resolver/ViewportStyleResolver.cpp |
diff --git a/Source/core/css/resolver/ViewportStyleResolver.cpp b/Source/core/css/resolver/ViewportStyleResolver.cpp |
index ac30e8ca2ac7ff0736471498c9243f909486a9c4..36cbf2c5597ca22623bbbc97914a494ec75461f0 100644 |
--- a/Source/core/css/resolver/ViewportStyleResolver.cpp |
+++ b/Source/core/css/resolver/ViewportStyleResolver.cpp |
@@ -61,7 +61,7 @@ void ViewportStyleResolver::addViewportRule(StyleRuleViewport* viewportRule) |
return; |
if (!m_propertySet) { |
- m_propertySet = propertySet->copy(); |
+ m_propertySet = propertySet->mutableCopy(); |
return; |
} |