Pass per-frame task runners to Workers (when possible)

third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h

Index: third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h
diff --git a/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h b/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h
index d22ec94aade9a6cb55b342b8037cf01d131a6421..d3e9cf4ce6945d4e1850907985764b3bf1ace2c9 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.h
@@ -44,6 +44,7 @@ class ConsoleMessage;
 class ExecutionContext;
 class ExecutionContextTask;
 class InProcessWorkerMessagingProxy;
+class ParentFrameTaskRunners;
 class WorkerOrWorkletGlobalScope;
 
 // A proxy to talk to the worker object. This object is created on the
@@ -79,6 +80,9 @@ protected:
     virtual ExecutionContext* getExecutionContext();
 
 private:
+    // Returns the parent frame's task runners.
+    ParentFrameTaskRunners* getParentFrameTaskRunners();
+
     // This object always outlives this proxy.
     InProcessWorkerMessagingProxy* m_messagingProxy;
 };