Remove DEFINE_STATIC_REF calls from header files

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 87412c89414ba14c8e169cd208df64602a5b7754..9d3bcb75b4850fc624022e9a0449220b9316a367 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -200,12 +200,7 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase<ComputedStyle>,
 
   static PassRefPtr<ComputedStyle> CreateInitialStyle();
   // TODO(shend): Remove this. Initial style should not be mutable.
-  static inline ComputedStyle& MutableInitialStyle() {
-    LEAK_SANITIZER_DISABLED_SCOPE;
-    DEFINE_STATIC_REF(ComputedStyle, initial_style,
-                      (ComputedStyle::CreateInitialStyle()));
-    return *initial_style;
-  }
+  static ComputedStyle& MutableInitialStyle();
 
  public:
   static PassRefPtr<ComputedStyle> Create();