Refactor Permissions related method out of ContentBrowserClient.

content/shell/browser/shell_permission_manager.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 CONTENT_SHELL_BROWSER_SHELL_PERMISSION_MANAGER_H_
+#define CONTENT_SHELL_BROWSER_SHELL_PERMISSION_MANAGER_H_
+
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "content/public/browser/permission_manager.h"
+
+namespace content {
+
+class ShellPermissionManager : public PermissionManager {
+ public:
+  ShellPermissionManager();
+  ~ShellPermissionManager() override;
+
+  // PermissionManager implementation.
+  void RequestPermission(
+      PermissionType permission,
+      WebContents* web_contents,
+      int request_id,
+      const GURL& requesting_origin,
+      bool user_gesture,
+      const base::Callback<void(PermissionStatus)>& callback) override;
+  void CancelPermissionRequest(PermissionType permission,
+                               WebContents* web_contents,
+                               int request_id,
+                               const GURL& requesting_origin) override;
+  void ResetPermission(PermissionType permission,
+                       const GURL& requesting_origin,
+                       const GURL& embedding_origin) override;
+  PermissionStatus GetPermissionStatus(PermissionType permission,
+                                       const GURL& requesting_origin,
+                                       const GURL& embedding_origin) override;
+  void RegisterPermissionUsage(PermissionType permission,
+                               const GURL& requesting_origin,
+                               const GURL& embedding_origin) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellPermissionManager);
+};
+
+}  // namespace content
+
+#endif // CONTENT_SHELL_BROWSER_SHELL_PERMISSION_MANAGER_H