CSSValue Immediates: Replace CSSPrimitiveValue usage with const references

Source/core/inspector/LayoutEditor.cpp

Index: Source/core/inspector/LayoutEditor.cpp
diff --git a/Source/core/inspector/LayoutEditor.cpp b/Source/core/inspector/LayoutEditor.cpp
index a687d3401251a7f02694f155ebc44deb87482bca..31a6134f604f564d00547f41d33ed9fab4cc9d89 100644
--- a/Source/core/inspector/LayoutEditor.cpp
+++ b/Source/core/inspector/LayoutEditor.cpp
@@ -149,7 +149,7 @@ PassRefPtr<JSONObject> LayoutEditor::createValueDescription(const String& proper
         return nullptr;
 
     RefPtr<JSONObject> object = JSONObject::create();
-    object->setNumber("value", toCSSPrimitiveValue(*cssValue).getFloatValue());
+    object->setNumber("value", toCSSPrimitiveValue(cssValue).getFloatValue());
     object->setString("unit", "px");
     return object.release();
 }
@@ -166,7 +166,7 @@ void LayoutEditor::overlayStartedPropertyChange(const String& anchorName)
         return;
     }
 
-    m_propertyInitialValue = toCSSPrimitiveValue(*cssValue).getFloatValue();
+    m_propertyInitialValue = toCSSPrimitiveValue(cssValue).getFloatValue();
 }
 
 void LayoutEditor::overlayPropertyChanged(float cssDelta)