DevTools: add initial support for shared workers debugging

content/browser/debugger/worker_devtools_manager_io.h

+// Copyright (c) 2011 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 CONTENT_BROWSER_DEBUGGER_WORKER_DEVTOOLS_MANAGER_IO_H_
+#define CONTENT_BROWSER_DEBUGGER_WORKER_DEVTOOLS_MANAGER_IO_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/memory/singleton.h"
+#include "base/scoped_ptr.h"
+
+namespace IPC {
+class Message;
+}
+class DevToolsClientHost;
+class WorkerDevToolsMessageFilter;
+
+// All methods are supposed to be called on the IO thread.
+class WorkerDevToolsManagerIO {
+ public:
+  // Returns the WorkerDevToolsManagerIO singleton.
+  static WorkerDevToolsManagerIO* GetInstance();
+
+  // This method is called on the UI thread by the devtools handler.
+  static bool ForwardToWorkerDevToolsAgentOnUIThread(
+      DevToolsClientHost* from,
+      const IPC::Message& message);
+
+  void OpenDevToolsForWorker(int worker_process_id, int worker_route_id);
+  void WorkerDevToolsClientClosing(int worker_process_host_id,
+                                   int worker_route_id);
+
+  void ForwardToDevToolsClient(int worker_process_id,
+                               int worker_route_id,
+                               const IPC::Message& message);
+  void WorkerProcessDestroying(int worker_process_host_id);
+
+ private:
+  friend struct DefaultSingletonTraits<WorkerDevToolsManagerIO>;
+
+  WorkerDevToolsManagerIO();
+  ~WorkerDevToolsManagerIO();
+  static void ForwardToWorkerDevToolsAgentOnIOThread(
+      int worker_process_host_id,
+      int worker_route_id,
+      const IPC::Message& message);
+  void ForwardToWorkerDevToolsAgent(int worker_process_host_id,
+                                    int worker_route_id,
+                                    const IPC::Message& message);
+  class InspectedWorkersList;
+  scoped_ptr<InspectedWorkersList> inspected_workers_;
+
+  DISALLOW_COPY_AND_ASSIGN(WorkerDevToolsManagerIO);
+};
+
+#endif  // CONTENT_BROWSER_DEBUGGER_WORKER_DEVTOOLS_MANAGER_IO_H_