[animation-worklet] Implement registerAnimator in worklet scope

third_party/WebKit/Source/modules/compositorworker/AnimatorDefinition.cpp

+// Copyright 2017 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 "modules/compositorworker/AnimatorDefinition.h"
+
+#include "core/dom/ExecutionContext.h"
+#include "modules/compositorworker/Animator.h"
+#include "platform/bindings/ScriptState.h"
+#include "platform/bindings/V8Binding.h"
+#include "platform/bindings/V8ObjectConstructor.h"
+
+namespace blink {
+
+AnimatorDefinition::AnimatorDefinition(v8::Isolate* isolate,
+                                       v8::Local<v8::Function> constructor,
+                                       v8::Local<v8::Function> animate)
+    : constructor_(isolate, constructor), animate_(isolate, animate) {}
+
+AnimatorDefinition::~AnimatorDefinition() {}
+
+v8::Local<v8::Function> AnimatorDefinition::ConstructorLocal(
+    v8::Isolate* isolate) {
+  return constructor_.NewLocal(isolate);
+}
+
+}  // namespace blink