adds DesktopNotificationService to Profile

chrome/browser/notifications/notifications_prefs_cache.h

Index: chrome/browser/notifications/notifications_prefs_cache.h
diff --git a/chrome/browser/notifications/notifications_prefs_cache.h b/chrome/browser/notifications/notifications_prefs_cache.h
new file mode 100644
index 0000000000000000000000000000000000000000..e873da7cae658ed6162b6a4b925da29beea3da53
--- /dev/null
+++ b/chrome/browser/notifications/notifications_prefs_cache.h
@@ -0,0 +1,45 @@
+// Copyright (c) 2009 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_NOTIFICATIONS_NOTIFICATIONS_PREFS_CACHE_H
+#define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATIONS_PREFS_CACHE_H
+
+#include <set>
+
+#include "base/ref_counted.h"
+#include "googleurl/src/gurl.h"
+
+class ListValue;
+
+// Class which caches notification preferences.
+// Construction occurs on the UI thread when the contents
+// of the profile preferences are initially cached.  Once constructed
+// this class should only be accessed on the IO thread.
+class NotificationsPrefsCache :
+    public base::RefCountedThreadSafe<NotificationsPrefsCache> {
+ public:
+  NotificationsPrefsCache(ListValue* allowed, ListValue* denied);
+
+  // Checks to see if a given origin has permission to create desktop
+  // notifications.  Returns a constant from WebNotificationPresenter
+  // class.
+  int HasPermission(const GURL& origin);
+
+  // Updates the cache with a new origin allowed or denied.
+  void CacheAllowedOrigin(const GURL& origin);
+  void CacheDeniedOrigin(const GURL& origin);
+
+ private:
+  // Helper functions which read preferences.
+  bool IsOriginAllowed(const GURL& origin);
+  bool IsOriginDenied(const GURL& origin);
+
+  // Storage of the actual preferences.
+  std::set<GURL> allowed_origins_;
+  std::set<GURL> denied_origins_;
+
+  DISALLOW_COPY_AND_ASSIGN(NotificationsPrefsCache);
+};
+
+#endif  // #ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATIONS_PREFS_CACHE_H