Add a JavaScript dialog tab helper.

chrome/browser/devtools/devtools_window.cc

 // Copyright (c) 2012 The Chromium 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 "chrome/browser/devtools/devtools_window.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
@@ skipping 12 matching lines @@
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/webui/devtools_ui.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "components/app_modal/javascript_dialog_manager.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/syncable_prefs/pref_service_syncable.h"
 #include "components/zoom/page_zoom.h"
 #include "components/zoom/zoom_controller.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
@@ skipping 987 matching lines @@
     // Do not navigate back in history on Windows (http://crbug.com/74156).
     return;
   }
   BrowserWindow* inspected_window = GetInspectedBrowserWindow();
   if (inspected_window)
     inspected_window->HandleKeyboardEvent(event);
 }
 
 content::JavaScriptDialogManager* DevToolsWindow::GetJavaScriptDialogManager(
     WebContents* source) {
-  WebContents* inspected_web_contents = GetInspectedWebContents();
-  return (inspected_web_contents && inspected_web_contents->GetDelegate())
-             ? inspected_web_contents->GetDelegate()
-                   ->GetJavaScriptDialogManager(inspected_web_contents)
-             : content::WebContentsDelegate::GetJavaScriptDialogManager(source);
+  return app_modal::JavaScriptDialogManager::GetInstance();
 }
 
 content::ColorChooser* DevToolsWindow::OpenColorChooser(
     WebContents* web_contents,
     SkColor initial_color,
     const std::vector<content::ColorSuggestion>& suggestions) {
   return chrome::ShowColorChooser(web_contents, initial_color);
 }
 
 void DevToolsWindow::RunFileChooser(content::RenderFrameHost* render_frame_host,
@@ skipping 268 matching lines @@
 bool DevToolsWindow::ReloadInspectedWebContents(bool bypass_cache) {
   // Only route reload via front-end if the agent is attached.
   WebContents* wc = GetInspectedWebContents();
   if (!wc || wc->GetCrashedStatus() != base::TERMINATION_STATUS_STILL_RUNNING)
     return false;
   base::FundamentalValue bypass_cache_value(bypass_cache);
   bindings_->CallClientFunction("DevToolsAPI.reloadInspectedPage",
                                 &bypass_cache_value, nullptr, nullptr);
   return true;
 }