Implement preference and policy based content settings providers.

chrome/browser/content_settings/host_content_settings_map_unittest.h

+// Copyright (c) 2010 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_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_UNITTEST_H_
+#define CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_UNITTEST_H_
+#pragma once
+
+#include "chrome/browser/content_settings/content_settings_details.h"
+#include "chrome/browser/content_settings/host_content_settings_map.h"
+#include "chrome/common/notification_service.h"
+#include "googleurl/src/gurl.h"
+
+class HostContentSettingsMap;
+
+class StubSettingsObserver : public NotificationObserver {
+ public:
+  StubSettingsObserver() : last_notifier(NULL), counter(0) {
+    registrar_.Add(this, NotificationType::CONTENT_SETTINGS_CHANGED,
+                   NotificationService::AllSources());
+  }
+
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {
+    ++counter;
+    Source<HostContentSettingsMap> content_settings(source);
+    Details<ContentSettingsDetails> settings_details(details);
+    last_notifier = content_settings.ptr();
+    last_pattern = settings_details.ptr()->pattern();
+    last_update_all = settings_details.ptr()->update_all();
+    last_update_all_types = settings_details.ptr()->update_all_types();
+    last_type = settings_details.ptr()->type();
+    // This checks that calling a Get function from an observer doesn't
+    // deadlock.
+    last_notifier->GetContentSettings(GURL("http://random-hostname.com/"));
+  }
+
+  HostContentSettingsMap* last_notifier;
+  ContentSettingsPattern last_pattern;
+  bool last_update_all;
+  bool last_update_all_types;
+  int counter;
+  ContentSettingsType last_type;
+
+ private:
+  NotificationRegistrar registrar_;
+};
+#endif  // CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_UNITTEST_H_