Update to Chromium revision 304f01a1 (#358063)

- Improve ordering of CefLoadHandler callbacks. OnLoadingStateChange will
  be called before and after all calls to OnLoadStart and OnLoadEnd.
  OnLoadStart/OnLoadEnd calls will occur as matching pairs
  (see http://crbug.com/539952#c2).
- Remove the |requesting_url| argument to CefGeolocationHandler::
  OnCancelGeolocationPermission. Clients can use the |request_id| argument
  to track this information themselves.
- Fix a crash when loading the PDF extension in multiple browsers with a
  custom CefRequestContext (issue #1757).

libcef/browser/permissions/permission_util.h

@@ -0,0 +1,19 @@
+// Copyright 2015 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 CEF_LIBCEF_BROWSER_PERMISSIONS_PERMISSION_UTIL_H_
+#define CEF_LIBCEF_BROWSER_PERMISSIONS_PERMISSION_UTIL_H_
+
+#include "components/content_settings/core/common/content_settings_types.h"
+#include "content/public/browser/permission_type.h"
+
+namespace permission_util {
+
+// Helper method to convert PermissionType to ContentSettingType.
+ContentSettingsType PermissionTypeToContentSetting(
+    content::PermissionType permission);
+
+}  // namespace permission_util
+
+#endif // CEF_LIBCEF_BROWSER_PERMISSIONS_PERMISSION_UTIL_H_