[inspector] added inspector test runner [part 2]

test/inspector/inspector-impl.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_INSPECTOR_IMPL_H_
+#define V8_TEST_INSPECTOR_PROTOCOL_INSPECTOR_IMPL_H_
+
+#include "include/v8-inspector.h"
+#include "include/v8.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
+#include "test/inspector/task-runner.h"
+
+class InspectorClientImpl : public v8_inspector::V8InspectorClient {
+ public:
+  class FrontendChannel {
+   public:
+    virtual ~FrontendChannel() = default;
+    virtual void SendMessageToFrontend(
+        const v8_inspector::StringView& message) = 0;
+  };
+
+  InspectorClientImpl(TaskRunner* task_runner,
+                      FrontendChannel* frontend_channel,
+                      v8::base::Semaphore* ready_semaphore);
+  virtual ~InspectorClientImpl();
+
+ private:
+  // V8InspectorClient implementation.
+  v8::Local<v8::Context> ensureDefaultContextInGroup(
+      int context_group_id) override;
+  double currentTimeMS() override;
+  void runMessageLoopOnPause(int context_group_id) override;
+  void quitMessageLoopOnPause() override;
+
+  static v8_inspector::V8InspectorSession* SessionFromContext(
+      v8::Local<v8::Context> context);
+
+  friend class SendMessageToBackendTask;
+
+  friend class ConnectTask;
+  void connect(v8::Local<v8::Context> context);
+
+  std::unique_ptr<v8_inspector::V8Inspector> inspector_;
+  std::unique_ptr<v8_inspector::V8InspectorSession> session_;
+  std::unique_ptr<v8_inspector::V8Inspector::Channel> channel_;
+
+  v8::Isolate* isolate_;
+  v8::Global<v8::Context> context_;
+
+  TaskRunner* task_runner_;
+  FrontendChannel* frontend_channel_;
+
+  DISALLOW_COPY_AND_ASSIGN(InspectorClientImpl);
+};
+
+class SendMessageToBackendExtension : public v8::Extension {
+ public:
+  SendMessageToBackendExtension()
+      : v8::Extension("v8_inspector/frontend",
+                      "native function sendMessageToBackend();") {}
+  virtual v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate(
+      v8::Isolate* isolate, v8::Local<v8::String> name);
+
+  static void set_backend_task_runner(TaskRunner* task_runner) {
+    backend_task_runner_ = task_runner;
+  }
+
+ private:
+  static void SendMessageToBackend(
+      const v8::FunctionCallbackInfo<v8::Value>& args);
+
+  static TaskRunner* backend_task_runner_;
+};
+
+#endif  //  V8_TEST_INSPECTOR_PROTOCOL_INSPECTOR_IMPL_H_