Support animating <resolution> custom properties

third_party/WebKit/Source/core/animation/BUILD.gn

 # Copyright 2016 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.
 
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("animation") {
   split_count = 5
 
   sources = [
@@ skipping 50 matching lines @@
     "CSSNumberInterpolationType.h",
     "CSSOffsetRotateInterpolationType.cpp",
     "CSSOffsetRotateInterpolationType.h",
     "CSSPaintInterpolationType.cpp",
     "CSSPaintInterpolationType.h",
     "CSSPathInterpolationType.cpp",
     "CSSPathInterpolationType.h",
     "CSSPositionAxisListInterpolationType.cpp",
     "CSSPositionAxisListInterpolationType.h",
     "CSSPositionInterpolationType.h",
+    "CSSResolutionInterpolationType.cpp",
+    "CSSResolutionInterpolationType.h",
     "CSSRotateInterpolationType.cpp",
     "CSSRotateInterpolationType.h",
     "CSSScaleInterpolationType.cpp",
     "CSSScaleInterpolationType.h",
     "CSSShadowListInterpolationType.cpp",
     "CSSShadowListInterpolationType.h",
     "CSSSizeListInterpolationType.cpp",
     "CSSSizeListInterpolationType.h",
     "CSSTextIndentInterpolationType.cpp",
     "CSSTextIndentInterpolationType.h",
@@ skipping 195 matching lines @@
     "css/CSSTimingData.h",
     "css/CSSTransitionData.cpp",
     "css/CSSTransitionData.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }