[animation-worklet] invoke animate callback on mutation signal

third_party/WebKit/Source/core/dom/AnimationWorkletProxyClient.cpp

Index: third_party/WebKit/Source/core/dom/AnimationWorkletProxyClient.cpp
diff --git a/third_party/WebKit/Source/core/dom/AnimationWorkletProxyClient.cpp b/third_party/WebKit/Source/core/dom/AnimationWorkletProxyClient.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..e5a2980ea19cde526e426d4e96e6ea31b583b548
--- /dev/null
+++ b/third_party/WebKit/Source/core/dom/AnimationWorkletProxyClient.cpp
@@ -0,0 +1,25 @@
+// 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.
+
+#include "core/dom/AnimationWorkletProxyClient.h"
+
+namespace blink {
+
+AnimationWorkletProxyClient* AnimationWorkletProxyClient::From(
+    WorkerClients* clients) {
+  return static_cast<AnimationWorkletProxyClient*>(
+      Supplement<WorkerClients>::From(clients, SupplementName()));
+}
+
+const char* AnimationWorkletProxyClient::SupplementName() {
+  return "AnimationWorkletProxyClient";
+}
+
+void ProvideAnimationWorkletProxyClientTo(WorkerClients* clients,
+                                          AnimationWorkletProxyClient* client) {
+  clients->ProvideSupplement(AnimationWorkletProxyClient::SupplementName(),
+                             client);
+}
+
+}  // namespace blink