Replace NinePieceImage.setMaskDefault with static method.

third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 82 matching lines @@
   }
 
   const CSSReflectValue& reflect_value = ToCSSReflectValue(value);
   RefPtr<StyleReflection> reflection = StyleReflection::Create();
   reflection->SetDirection(
       reflect_value.Direction()->ConvertTo<CSSReflectionDirection>());
   if (reflect_value.Offset())
     reflection->SetOffset(reflect_value.Offset()->ConvertToLength(
         state.CssToLengthConversionData()));
   if (reflect_value.Mask()) {
-    NinePieceImage mask;
-    mask.SetMaskDefaults();
+    NinePieceImage mask = NinePieceImage::MaskDefaults();
     CSSToStyleMap::MapNinePieceImage(state, CSSPropertyWebkitBoxReflect,
                                      *reflect_value.Mask(), mask);
     reflection->SetMask(mask);
   }
 
   return reflection.Release();
 }
 
 Color StyleBuilderConverter::ConvertColor(StyleResolverState& state,
                                           const CSSValue& value,
@@ skipping 1309 matching lines @@
 }
 
 const CSSValue& StyleBuilderConverter::ConvertRegisteredPropertyValue(
     const StyleResolverState& state,
     const CSSValue& value) {
   return ComputeRegisteredPropertyValue(state.CssToLengthConversionData(),
                                         value);
 }
 
 }  // namespace blink