[inspector] added createContextGroup for tests

test/inspector/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 <map>
 
 #include "include/v8-inspector.h"
@@ skipping 34 matching lines @@
 
   // Should be called from the same thread and only from task.
   void RunMessageLoop(bool only_protocol);
   void QuitMessageLoop();
 
   // TaskRunner takes ownership.
   void Append(Task* task);
 
   static TaskRunner* FromContext(v8::Local<v8::Context>);
 
+  v8::Local<v8::Context> NewContextGroup();
+  v8::Local<v8::Context> GetContext(int context_group_id);
+  static int GetContextGroupId(v8::Local<v8::Context> context);
+
   void Terminate();
 
   void RegisterModule(v8::internal::Vector<uint16_t> name,
                       v8::Local<v8::Module> module);
   static v8::MaybeLocal<v8::Module> ModuleResolveCallback(
       v8::Local<v8::Context> context, v8::Local<v8::String> specifier,
       v8::Local<v8::Module> referrer);
 
  private:
-  void InitializeContext();
+  void InitializeIsolate();
   Task* GetNext(bool only_protocol);
 
   v8::ExtensionConfiguration* extensions_;
   bool catch_exceptions_;
   v8::base::Semaphore* ready_semaphore_;
 
   v8::Isolate* isolate_;
-  v8::Global<v8::Context> context_;
+  intptr_t last_context_group_id_ = 0;
+  std::map<intptr_t, v8::Global<v8::Context>> contexts_;
 
   // deferred_queue_ combined with queue_ (in this order) have all tasks in the
   // correct order. Sometimes we skip non-protocol tasks by moving them from
   // queue_ to deferred_queue_.
   v8::internal::LockedQueue<Task*> queue_;
   v8::internal::LockedQueue<Task*> deffered_queue_;
   v8::base::Semaphore process_queue_semaphore_;
 
   std::map<v8::internal::Vector<uint16_t>, v8::Global<v8::Module>,
            VectorCompare>
@@ skipping 40 matching lines @@
   v8::internal::Vector<const char> expression_utf8_;
   v8::internal::Vector<uint16_t> name_;
   int32_t line_offset_ = 0;
   int32_t column_offset_ = 0;
   bool is_module_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(ExecuteStringTask);
 };
 
 #endif  //  V8_TEST_INSPECTOR_PROTOCOL_TASK_RUNNER_H_