Revert of [inspector] move console to builtins

test/inspector/inspector-impl.cc

 // 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.
 
 #include "test/inspector/inspector-impl.h"
 
 #include "include/v8.h"
 
 #include "src/vector.h"
 
@@ skipping 189 matching lines @@
     v8::base::Semaphore* ready_semaphore) {
   task_runner_->Append(new DisconnectTask(this));
   task_runner_->Append(new ConnectTask(this, ready_semaphore));
 }
 
 void InspectorClientImpl::disconnect() {
   for (const auto& it : sessions_) {
     states_[it.first] = it.second->stateJSON();
   }
   sessions_.clear();
-  inspector_.reset();
 }
 
 void InspectorClientImpl::scheduleCreateContextGroup(
     v8::ExtensionConfiguration* extensions,
     v8::base::Semaphore* ready_semaphore, int* context_group_id) {
   task_runner_->Append(new CreateContextGroupTask(
       this, extensions, ready_semaphore, context_group_id));
 }
 
 int InspectorClientImpl::createContextGroup(
@@ skipping 121 matching lines @@
 }
 
 void SendMessageToBackendExtension::SendMessageToBackend(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK(backend_task_runner_);
   CHECK(args.Length() == 2 && args[0]->IsString() && args[1]->IsInt32());
   v8::Local<v8::String> message = args[0].As<v8::String>();
   backend_task_runner_->Append(new SendMessageToBackendTask(
       ToVector(message), args[1].As<v8::Int32>()->Value()));
 }