Collecting statistics on iframe permissions use.

chrome/browser/content_settings/permission_context_uma_util.h

 // Copyright 2014 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_PERMISSION_CONTEXT_UMA_UTIL_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_CONTEXT_UMA_UTIL_H_
 
 #include "base/logging.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 
 class GURL;
 
+class HostContentSettingsMap;
+
 // Provides a convenient way of logging UMA for permission related
 // operations.
 class PermissionContextUmaUtil {
  public:
+  static void PermissionRequested(
+      ContentSettingsType permission,
+      const GURL& requesting_origin,
+      const GURL& embedding_origin,
+      HostContentSettingsMap* host_content_settings_map);
   static void PermissionGranted(ContentSettingsType permission,
                                 const GURL& requesting_origin);
   static void PermissionDenied(ContentSettingsType permission,
                                const GURL& requesting_origin);
   static void PermissionDismissed(ContentSettingsType permission,
                                   const GURL& requesting_origin);
-  static void PermissionRequested(ContentSettingsType permission,
-                                  const GURL& requesting_origin);
   static void PermissionIgnored(ContentSettingsType permission,
                                 const GURL& requesting_origin);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PermissionContextUmaUtil);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_CONTEXT_UMA_UTIL_H_