| Index: Source/core/css/StyleRule.cpp
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| diff --git a/Source/core/css/StyleRule.cpp b/Source/core/css/StyleRule.cpp
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| index 82ac896e65a05de0f1605bd174e9f74208c75b6a..7cdf020473915b09858fe583472c3a931b69bb92 100644
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| --- a/Source/core/css/StyleRule.cpp
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| +++ b/Source/core/css/StyleRule.cpp
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| @@ -342,14 +342,12 @@ StyleRuleRegion::StyleRuleRegion(const StyleRuleRegion& o)
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|  StyleRuleViewport::StyleRuleViewport()
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|      : StyleRuleBase(Viewport, 0)
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|  {
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| -    ASSERT(RuntimeEnabledFeatures::cssViewportEnabled());
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|  }
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|  
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|  StyleRuleViewport::StyleRuleViewport(const StyleRuleViewport& o)
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|      : StyleRuleBase(o)
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|      , m_properties(o.m_properties->mutableCopy())
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|  {
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| -    ASSERT(RuntimeEnabledFeatures::cssViewportEnabled());
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|  }
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|  
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|  StyleRuleViewport::~StyleRuleViewport()
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| 
 |