Add 'storage_only' template to make_computed_style_base.py.

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

Index: third_party/WebKit/Source/core/style/ComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.h b/third_party/WebKit/Source/core/style/ComputedStyle.h
index b9f4b7d1a01ec81485767dc3f430741403962088..996e2c2e6eb750bab454cd36cc8644e0f641ac0d 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -266,8 +266,6 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
     unsigned m_styleType : 6;  // PseudoId
     unsigned m_pseudoBits : 8;
 
-    unsigned m_emptyState : 1;
-
     // 64 bits
 
     unsigned m_isLink : 1;
@@ -295,7 +293,6 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
         static_cast<unsigned>(initialVerticalAlign());
     m_nonInheritedData.m_styleType = PseudoIdNone;
     m_nonInheritedData.m_pseudoBits = 0;
-    m_nonInheritedData.m_emptyState = false;
     m_nonInheritedData.m_hasViewportUnits = false;
     m_nonInheritedData.m_isLink = false;
     m_nonInheritedData.m_hasRemUnits = false;
@@ -2430,10 +2427,10 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
   bool hasRemUnits() const { return m_nonInheritedData.m_hasRemUnits; }
   void setHasRemUnits() const { m_nonInheritedData.m_hasRemUnits = true; }
 
-  bool emptyState() const { return m_nonInheritedData.m_emptyState; }
+  bool emptyState() const { return m_emptyState; }
   void setEmptyState(bool b) {
     setUnique();
-    m_nonInheritedData.m_emptyState = b;
+    m_emptyState = b;
   }
 
   bool hasInlineTransform() const {