browser: implement multiple permission requesting

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.
   int RequestPermission(
       PermissionType permission,
       RenderFrameHost* render_frame_host,
       const GURL& requesting_origin,
       bool user_gesture,
       const base::Callback<void(PermissionStatus)>& callback) override;
+  int RequestPermissions(
+      const std::vector<PermissionType>& permission,
+      RenderFrameHost* render_frame_host,
+      int request_id,
+      const GURL& requesting_origin,
+      bool user_gesture,
+      const base::Callback<void(
+          const std::vector<PermissionStatus>&)>& callback) override;
   void CancelPermissionRequest(RenderFrameHost* render_frame_host,
                                int request_id) 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;
   int SubscribePermissionStatusChange(
       PermissionType permission,
       const GURL& requesting_origin,
       const GURL& embedding_origin,
       const base::Callback<void(PermissionStatus)>& callback) override;
   void UnsubscribePermissionStatusChange(int subscription_id) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ShellPermissionManager);
 };
 
 }  // namespace content
 
 #endif // CONTENT_SHELL_BROWSER_SHELL_PERMISSION_MANAGER_H