reload cause render process crash

[softarts]

the code are messy

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// Copyright (c) 2013 The Chromium Embedded Framework 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 "client_app.h"
#include "include/wrapper/cef_helpers.h"
#include <QDebug>

// Must match the value in client_handler.cc.
const char kFocusedNodeChangedMessage[] = "ClientRenderer.FocusedNodeChanged";

ClientApp::ClientApp()
{
   last_node_is_editable_ = false;
}

void ClientApp::OnContextInitialized() {
  CEF_REQUIRE_UI_THREAD();
}

// called in renderer process
void ClientApp::OnWebKitInitialized()
{
    CefMessageRouterConfig config;
    config.js_query_function = "ClientQuery";
    config.js_cancel_function = "ClientQueryCancel";
    render_message_router_ = CefMessageRouterRendererSide::Create(config);
}

// renderer process
void ClientApp::OnContextCreated(CefRefPtr<CefBrowser> browser,
    CefRefPtr<CefFrame> frame,
    CefRefPtr<CefV8Context> context)
{
    render_message_router_->OnContextCreated(browser, frame, context);
}

void ClientApp::OnContextReleased(CefRefPtr<CefBrowser> app,
                                  CefRefPtr<CefBrowser> browser,
                                  CefRefPtr<CefFrame> frame,
                                  CefRefPtr<CefV8Context> context)
{
    render_message_router_->OnContextReleased(browser, frame, context);      
}

// renderer process
bool ClientApp::OnProcessMessageReceived(CefRefPtr<CefBrowser> browser,
                                        CefProcessId source_process,
                                        CefRefPtr<CefProcessMessage> message)
{
    return render_message_router_->OnProcessMessageReceived(browser, source_process, message);       
}

void ClientApp::OnBeforeCommandLineProcessing(
   const CefString& process_type,
   CefRefPtr<CefCommandLine> command_line)
{
   command_line->AppendSwitch("disable-spell-checking");
   command_line->AppendSwitch("disable-extensions");
   command_line->AppendSwitch("disable-pdf-extension");
   command_line->AppendSwitch("enable-direct-write");
   command_line->AppendSwitch("allow-file-access-from-files");
       // https://bitbucket.org/chromiumembedded/cef/issues/1680/windows-2454-crash-on-shutdown-with-multi
}


 void ClientApp::OnFocusedNodeChanged(CefRefPtr<CefBrowser> browser,
                                    CefRefPtr<CefFrame> frame,
                                    CefRefPtr<CefDOMNode> node) {
    bool is_editable = (node.get() && node->IsEditable());
    if (is_editable != last_node_is_editable_) {
      // Notify the browser of the change in focused element type.
      last_node_is_editable_ = is_editable;
      CefRefPtr<CefProcessMessage> message =
          CefProcessMessage::Create(kFocusedNodeChangedMessage);
      message->GetArgumentList()->SetBool(0, is_editable);
      browser->SendProcessMessage(PID_BROWSER, message);
    }
  }