[ash-md] Remove the number of animators used for the Shelf animations.

ui/gfx/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 13 matching lines @@
 component("gfx") {
   sources = [
     "android/gfx_jni_registrar.cc",
     "android/gfx_jni_registrar.h",
     "android/java_bitmap.cc",
     "android/java_bitmap.h",
     "android/view_configuration.cc",
     "android/view_configuration.h",
     "animation/animation.cc",
     "animation/animation.h",
+    "animation/animation_change_type.h",
     "animation/animation_container.cc",
     "animation/animation_container.h",
     "animation/animation_container_element.h",
     "animation/animation_container_observer.h",
     "animation/animation_delegate.h",
     "animation/animation_mac.mm",
     "animation/animation_win.cc",
     "animation/linear_animation.cc",
     "animation/linear_animation.h",
     "animation/multi_animation.cc",
@@ skipping 721 matching lines @@
 
 fuzzer_test("color_transform_fuzztest") {
   sources = [
     "color_transform_fuzzer.cc",
   ]
   deps = [
     ":gfx",
   ]
   libfuzzer_options = [ "max_len=1024" ]
 }