Revert "Track input latency while starting a ServiceWorker for a navigation hint."

content/browser/service_worker/service_worker_context_wrapper.h

 // Copyright 2013 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_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 209 matching lines @@
   void UpdateRegistration(const GURL& pattern);
   void SetForceUpdateOnPageLoad(bool force_update_on_page_load);
   void AddObserver(ServiceWorkerContextObserver* observer);
   void RemoveObserver(ServiceWorkerContextObserver* observer);
 
   bool is_incognito() const { return is_incognito_; }
 
   // Must be called from the IO thread.
   bool OriginHasForeignFetchRegistrations(const GURL& origin);
 
-  // Must be called from the UI thread.
-  bool IsRunningNavigationHintTask(int render_process_id) const;
-
  private:
   friend class BackgroundSyncManagerTest;
   friend class base::RefCountedThreadSafe<ServiceWorkerContextWrapper>;
   friend class EmbeddedWorkerTestHelper;
   friend class EmbeddedWorkerBrowserTest;
   friend class ForeignFetchRequestHandler;
   friend class ServiceWorkerDispatcherHost;
   friend class ServiceWorkerInternalsUI;
   friend class ServiceWorkerNavigationHandleCore;
   friend class ServiceWorkerProcessManager;
@@ skipping 42 matching lines @@
       blink::WebNavigationHintType type,
       int render_process_id,
       const ResultCallback& callback,
       ServiceWorkerStatusCode status,
       scoped_refptr<ServiceWorkerRegistration> registration);
 
   void DidStartServiceWorkerForNavigationHint(const GURL& pattern,
                                               int render_process_id,
                                               const ResultCallback& callback,
                                               ServiceWorkerStatusCode code);
-  void DidFinishNavigationHintTaskOnUI(int render_process_id,
-                                       const ResultCallback& callback,
-                                       bool result);
 
   // The core context is only for use on the IO thread.
   // Can be null before/during init, during/after shutdown, and after
   // DeleteAndStartOver fails.
   ServiceWorkerContextCore* context();
 
   const scoped_refptr<base::ObserverListThreadSafe<
       ServiceWorkerContextObserver>> observer_list_;
   const std::unique_ptr<ServiceWorkerProcessManager> process_manager_;
   // Cleared in ShutdownOnIO():
   std::unique_ptr<ServiceWorkerContextCore> context_core_;
 
   // Initialized in Init(); true if the user data directory is empty.
   bool is_incognito_;
 
   // Raw pointer to the StoragePartitionImpl owning |this|.
   StoragePartitionImpl* storage_partition_;
 
   // The ResourceContext associated with this context.
   ResourceContext* resource_context_;
 
-  // Must be touched on the UI thread.
-  std::map<int, int> navigation_hint_task_count_per_process_;
-
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_