Split the existing GoogleURLTrackerInfoBarDelegate into two classes

chrome/browser/google/google_url_tracker_map_entry.h

+// 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.
+
+#ifndef CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_MAP_ENTRY_H_
+#define CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_MAP_ENTRY_H_
+
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/notification_source.h"
+
+class GoogleURLTracker;
+class GoogleURLTrackerInfoBarDelegate;
+class InfoBarTabHelper;
+
+class GoogleURLTrackerMapEntry : public content::NotificationObserver {
+ public:
+  GoogleURLTrackerMapEntry(
+      GoogleURLTracker* google_url_tracker,
+      InfoBarTabHelper* infobar_helper,
+      const content::NotificationSource& navigation_controller_source,
+      const content::NotificationSource& web_contents_source);
+  virtual ~GoogleURLTrackerMapEntry();
+
+  bool has_infobar() const { return !!infobar_; }
+  GoogleURLTrackerInfoBarDelegate* infobar() { return infobar_; }
+  void SetInfoBar(GoogleURLTrackerInfoBarDelegate* infobar);
+
+  const content::NotificationSource& navigation_controller_source() const {
+    return navigation_controller_source_;
+  }
+  const content::NotificationSource& web_contents_source() const {
+    return web_contents_source_;
+  }
+
+  void Close(bool redo_search);
+
+ private:
+  friend class GoogleURLTrackerTest;
+
+  // content::NotificationObserver:
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  content::NotificationRegistrar registrar_;
+  GoogleURLTracker* const google_url_tracker_;
+  const InfoBarTabHelper* const infobar_helper_;
+  GoogleURLTrackerInfoBarDelegate* infobar_;
+  const content::NotificationSource navigation_controller_source_;
+  const content::NotificationSource web_contents_source_;
+
+  DISALLOW_COPY_AND_ASSIGN(GoogleURLTrackerMapEntry);
+};
+
+#endif  // CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_MAP_ENTRY_H_