Revert of Gather the ServiceWorker client information in the browser process.

content/common/service_worker/service_worker_client_info.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_COMMON_SERVICE_WORKER_SERVICE_WORKER_INFO_CLIENT_H_
-#define CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_INFO_CLIENT_H_
-
-#include "content/public/common/request_context_frame_type.h"
-#include "third_party/WebKit/public/platform/WebPageVisibilityState.h"
-#include "url/gurl.h"
-
-namespace content {
-
-// This class holds the information related to a service worker window client.
-// It is the content/ equivalent of Blink's WebServiceWorkerClientInfo.
-// An instance can be created empty or can be filed with the expected
-// properties. Except for the client_id, it is preferred to use the constructor
-// to fill the properties.
-struct ServiceWorkerClientInfo {
-  ServiceWorkerClientInfo();
-  ServiceWorkerClientInfo(blink::WebPageVisibilityState page_visibility_state,
-                          bool is_focused,
-                          const GURL& url,
-                          RequestContextFrameType frame_type);
-
-  // Returns whether the instance is empty.
-  bool IsEmpty() const;
-
-  // Returns whether the instance is valid. A valid instance is not empty and
-  // has a valid client_id.
-  bool IsValid() const;
-
-  int client_id;
-  blink::WebPageVisibilityState page_visibility_state;
-  bool is_focused;
-  GURL url;
-  RequestContextFrameType frame_type;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_INFO_CLIENT_H_