Worker: Provide a way to access parent frame task runners from a worker thread

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

Index: third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThreadTest.cpp
diff --git a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThreadTest.cpp b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThreadTest.cpp
index f42cfe499a05d5c072bd6274a801ea138432432e..4c7fe4e707d07dd99722671e1146dbae673a2bb2 100644
--- a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThreadTest.cpp
+++ b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThreadTest.cpp
@@ -10,6 +10,7 @@
 #include "bindings/core/v8/WorkerOrWorkletScriptController.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/workers/InProcessWorkerObjectProxy.h"
+#include "core/workers/ParentFrameTaskRunners.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
@@ -45,6 +46,9 @@ class TestAnimationWorkletReportingProxy : public WorkerReportingProxy {
                             const String& message,
                             SourceLocation*) override {}
   void postMessageToPageInspector(const String&) override {}
+  ParentFrameTaskRunners* getParentFrameTaskRunners() override {
+    return m_parentFrameTaskRunners.get();
+  }
 
   void didEvaluateWorkerScript(bool success) override {}
   void didCloseWorkerGlobalScope() override {}
@@ -52,7 +56,10 @@ class TestAnimationWorkletReportingProxy : public WorkerReportingProxy {
   void didTerminateWorkerThread() override {}
 
  private:
-  TestAnimationWorkletReportingProxy() {}
+  TestAnimationWorkletReportingProxy()
+      : m_parentFrameTaskRunners(ParentFrameTaskRunners::create(nullptr)) {}
+
+  Persistent<ParentFrameTaskRunners> m_parentFrameTaskRunners;
 };
 
 class AnimationWorkletTestPlatform : public TestingPlatformSupport {