Moved nonproperty 'unique' to be generated in ComputedStyleBase.

third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index c4b93f256ab0d17d6b81c46073c5e1b76ec3a1f5..4f1427b2675570eb4490dec0676635e6762093fc 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -384,7 +384,7 @@ void ComputedStyle::copyNonInheritedFromCached(const ComputedStyle& other) {
   // m_nonInheritedData.m_explicitInheritance
 
   // unique() styles are not cacheable.
-  DCHECK(!other.m_nonInheritedData.m_unique);
+  DCHECK(!other.unique());
 
   // styles with non inherited properties that reference variables are not
   // cacheable.