Worker: Factor out common functions into ThreadedObjectProxyBase

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

+// 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.
+
+#ifndef ThreadedObjectProxyBase_h
+#define ThreadedObjectProxyBase_h
+
+#include "bindings/core/v8/SourceLocation.h"
+#include "core/CoreExport.h"
+#include "core/dom/MessagePort.h"
+#include "core/workers/WorkerReportingProxy.h"
+
+namespace blink {
+
+class ThreadedMessagingProxyBase;
+
+// A proxy to talk to the parent object. This object is created and destroyed on
+// the main thread, and used on the worker thread for proxying messages to the
+// ThreadedMessagingProxyBase on the main thread. ThreadedMessagingProxyBase
+// always outlives this proxy.
+class CORE_EXPORT ThreadedObjectProxyBase : public WorkerReportingProxy {
+  USING_FAST_MALLOC(ThreadedObjectProxyBase);
+  WTF_MAKE_NONCOPYABLE(ThreadedObjectProxyBase);
+
+ public:
+  ~ThreadedObjectProxyBase() override = default;
+
+  void reportPendingActivity(bool hasPendingActivity);
+
+  // WorkerReportingProxy overrides.
+  void countFeature(UseCounter::Feature) override{};
+  void countDeprecation(UseCounter::Feature) override{};
+  void reportConsoleMessage(MessageSource,
+                            MessageLevel,
+                            const String& message,
+                            SourceLocation*) override;
+  void postMessageToPageInspector(const String&) override;
+  ParentFrameTaskRunners* getParentFrameTaskRunners() override;
+  void didCloseWorkerGlobalScope() override;
+  void didTerminateWorkerThread() override;
+
+ protected:
+  explicit ThreadedObjectProxyBase(ParentFrameTaskRunners*);
+  virtual WeakPtr<ThreadedMessagingProxyBase> messagingProxyWeakPtr() = 0;
+
+ private:
+  // Used to post a task to ThreadedMessagingProxyBase on the parent context
+  // thread.
+  CrossThreadPersistent<ParentFrameTaskRunners> m_parentFrameTaskRunners;
+};
+
+}  // namespace blink
+
+#endif  // ThreadedObjectProxyBase_h