Refactor Permissions related method out of ContentBrowserClient.

chrome/browser/permissions/permission_context.h

+// 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 CHROME_BROWSER_PERMISSIONS_PERMISSION_CONTEXT_H_
+#define CHROME_BROWSER_PERMISSIONS_PERMISSION_CONTEXT_H_
+
+#include <list>
+
+#include "base/macros.h"
+#include "components/content_settings/core/common/content_settings_types.h"
+
+class PermissionContextBase;
+class Profile;
+class KeyedServiceBaseFactory;
+
+namespace content {
+enum class PermissionType;
+};  // namespace content
+
+class PermissionContext {
+ public:
+  // Helper method returning the PermissionContextBase object associated with
+  // the given ContentSettingsType.
+  static PermissionContextBase* Get(
+      Profile* profile,
+      content::PermissionType content_settings_type);
+
+  // Return all the factories related to PermissionContext. These are the
+  // factories used by ::Get() to create a PermissionContextBase.
+  // This is meant to be used by callers of ::Get() that need to depend on these
+  // factories.
+  static const std::list<KeyedServiceBaseFactory*>& GetFactories();
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(PermissionContext);
+};
+
+#endif // CHROME_BROWSER_PERMISSIONS_PERMISSION_CONTEXT_H_