[inspector] added inspector protocol test runner

test/inspector-protocol/task-runner.h

+// Copyright 2016 the V8 project 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 V8_TEST_INSPECTOR_PROTOCOL_TASK_RUNNER_H_
+#define V8_TEST_INSPECTOR_PROTOCOL_TASK_RUNNER_H_
+
+#include "include/v8-platform.h"
+#include "include/v8.h"
+#include "src/base/atomic-utils.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
+
+namespace v8_inspector {
+
+class Task;
+class TaskQueue;
+
+class TaskRunner : public v8::base::Thread {
+ public:
+  enum State { kRunning, kStopRequested };
+
+  explicit TaskRunner(TaskQueue* queue);
+  virtual ~TaskRunner();
+
+  void SetContext(v8::Local<v8::Context>);
+  TaskQueue* Queue() const { return queue_; }
+
+  // Thread implementation.
+  void Run() override;
+  void Stop();
+
+ private:
+  TaskQueue* queue_;
+  v8::base::AtomicValue<State> state_;
+
+  v8::Isolate* isolate_;
+  v8::Global<v8::Context> context_;
+
+  DISALLOW_COPY_AND_ASSIGN(TaskRunner);
+};
+
+}  //  v8_inspector
+
+#endif  //  V8_TEST_INSPECTOR_PROTOCOL_TASK_RUNNER_H_