Split out PermissionResult and PermissionStatusSource into a new cc/h file.

chrome/browser/permissions/permission_result.h

Index: chrome/browser/permissions/permission_result.h
diff --git a/chrome/browser/permissions/permission_result.h b/chrome/browser/permissions/permission_result.h
new file mode 100644
index 0000000000000000000000000000000000000000..04d2fdaedb42b3d37a72aa028cf0d6ab76015195
--- /dev/null
+++ b/chrome/browser/permissions/permission_result.h
@@ -0,0 +1,37 @@
+// Copyright 2017 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_PERMISSIONS_PERMISSION_RESULT_H_
+#define CHROME_BROWSER_PERMISSIONS_PERMISSION_RESULT_H_
+
+#include "components/content_settings/core/common/content_settings.h"
+
+// Identifies the source or reason for a permission status being returned. This
+// enum backs an UMA histogram and must be treated as append-only.
+enum class PermissionStatusSource {
+  // The reason for the status is not specified.
+  UNSPECIFIED,
+
+  // The status is the result of being blocked due to the user dismissing a
+  // permission prompt multiple times.
+  MULTIPLE_DISMISSALS,
+
+  // The status is the result of being blocked because the permission is on the
+  // safe browsing blacklist.
+  SAFE_BROWSING_BLACKLIST,
+
+  // The status is the result of being blocked by the permissions kill switch.
+  KILL_SWITCH,
+};
+
+struct PermissionResult {
+  PermissionResult(ContentSetting content_setting,
+                   PermissionStatusSource source);
+  ~PermissionResult();
+
+  ContentSetting content_setting;
+  PermissionStatusSource source;
+};
+
+#endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_RESULT_H_