[ios] Convert BlockedPopupHandler into a tab helper class.

ios/chrome/browser/web/blocked_popup_handler.h

Index: ios/chrome/browser/web/blocked_popup_handler.h
diff --git a/ios/chrome/browser/web/blocked_popup_handler.h b/ios/chrome/browser/web/blocked_popup_handler.h
deleted file mode 100644
index 0f03aa5ec98ef52e01612ec96d90b3b64122f19c..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/web/blocked_popup_handler.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 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.
-
-#ifndef IOS_CHROME_BROWSER_WEB_BLOCKED_POPUP_HANDLER_H_
-#define IOS_CHROME_BROWSER_WEB_BLOCKED_POPUP_HANDLER_H_
-
-#import <UIKit/UIKit.h>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/scoped_observer.h"
-#include "components/infobars/core/infobar_manager.h"
-#include "ios/web/web_state/blocked_popup_info.h"
-#include "url/gurl.h"
-
-namespace ios {
-class ChromeBrowserState;
-}
-
-@protocol BlockedPopupHandlerDelegate;
-
-// Handles blocked popups. Will display an infobar informing the user and
-// allowing the user to add an exception and navigate to the site.
-class BlockedPopupHandler : public infobars::InfoBarManager::Observer {
- public:
-  explicit BlockedPopupHandler(ios::ChromeBrowserState* browser_state);
-  ~BlockedPopupHandler() override;
-
-  void SetDelegate(id<BlockedPopupHandlerDelegate> delegate);
-
-  // Show the popup blocker infobar for the given popup.
-  void HandlePopup(const web::BlockedPopupInfo& blocked_popup_info);
-
-  // infobars::InfoBarManager::Observer implementation.
-  void OnInfoBarRemoved(infobars::InfoBar* infobar, bool animate) override;
-  void OnManagerShuttingDown(
-      infobars::InfoBarManager* infobar_manager) override;
-
- private:
-  // Show the infobar for the current popups. Will also handle replacing an
-  // existing infobar with the updated count.
-  void ShowInfoBar();
-
-  // The user browser state.
-  ios::ChromeBrowserState* browser_state_;
-  // The delegate that will display the infobar.
-  id<BlockedPopupHandlerDelegate> delegate_;
-  // The currently displayed infobar.
-  infobars::InfoBar* infobar_;
-  // The popups to open.
-  std::vector<web::BlockedPopupInfo> popups_;
-  // For management of infobars::InfoBarManager::Observer registration.
-  ScopedObserver<infobars::InfoBarManager, infobars::InfoBarManager::Observer>
-      scoped_observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlockedPopupHandler);
-};
-
-// Methods implemented by the delegate of the BlockedPopupHandler.
-@protocol BlockedPopupHandlerDelegate
-
-// Returns the infobars::InfoBarManager.
-- (infobars::InfoBarManager*)infoBarManager;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_WEB_BLOCKED_POPUP_HANDLER_H_