Enable interpolation of CSS property font-variation-settings

third_party/WebKit/Source/core/css/CSSPropertyEquality.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/CSSPropertyEquality.h"
 
 #include "core/css/CSSValue.h"
 #include "core/style/ComputedStyle.h"
 #include "core/style/DataEquivalency.h"
 #include "core/style/ShadowList.h"
@@ skipping 143 matching lines @@
       // Autosizing is enabled, but a computed size if text zoom is enabled (if
       // neither is enabled it's irrelevant as they're probably the same).
       // FIXME: Should we introduce an option to pass the computed font size
       // here, allowing consumers to enable text zoom rather than Text
       // Autosizing? See http://crbug.com/227545.
       return a.SpecifiedFontSize() == b.SpecifiedFontSize();
     case CSSPropertyFontSizeAdjust:
       return a.FontSizeAdjust() == b.FontSizeAdjust();
     case CSSPropertyFontStretch:
       return a.GetFontStretch() == b.GetFontStretch();
+    case CSSPropertyFontVariationSettings:
+      return DataEquivalent(a.GetFontDescription().VariationSettings(),
+                            b.GetFontDescription().VariationSettings());
     case CSSPropertyFontWeight:
       return a.GetFontWeight() == b.GetFontWeight();
     case CSSPropertyHeight:
       return a.Height() == b.Height();
     case CSSPropertyLeft:
       return a.Left() == b.Left();
     case CSSPropertyLetterSpacing:
       return a.LetterSpacing() == b.LetterSpacing();
     case CSSPropertyLightingColor:
       return a.LightingColor() == b.LightingColor();
@@ skipping 203 matching lines @@
 
 bool CSSPropertyEquality::RegisteredCustomPropertiesEqual(
     const AtomicString& property_name,
     const ComputedStyle& a,
     const ComputedStyle& b) {
   return DataEquivalent(a.GetRegisteredVariable(property_name),
                         b.GetRegisteredVariable(property_name));
 }
 
 }  // namespace blink