Pass per-frame task runners to Workers (when possible) [2nd try]

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

Index: third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.h
diff --git a/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.h b/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.h
index f1aa6e3c6e5f6254446fe494fe01baffb0ad3f84..1a518fe13798fdac0be931238c299aee57641d79 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.h
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.h
@@ -41,12 +41,13 @@
 
 namespace blink {
 
-class InProcessWorkerObjectProxy;
-class WorkerThread;
 class ExecutionContext;
 class InProcessWorkerBase;
+class InProcessWorkerObjectProxy;
+class ParentFrameTaskRunners;
 class WorkerClients;
 class WorkerInspectorProxy;
+class WorkerThread;
 
 // TODO(nhiroki): "MessagingProxy" is not well-defined term among worker
 // components. Probably we should rename this to something more suitable.
@@ -77,6 +78,8 @@ public:
 
     ExecutionContext* getExecutionContext() const { return m_executionContext.get(); }
 
+    ParentFrameTaskRunners* getParentFrameTaskRunners() { return m_parentFrameTaskRunners.get(); }
+
     // Number of live messaging proxies, used by leak detection.
     static int proxyCount();
 
@@ -123,6 +126,8 @@ private:
 
     Persistent<WorkerClients> m_workerClients;
 
+    Persistent<ParentFrameTaskRunners> m_parentFrameTaskRunners;
+
     RefPtr<WorkerLoaderProxy> m_loaderProxy;
 };