Add two interfaces for ServiceWorkerProviderContext/ProviderHost

content/browser/service_worker/service_worker_dispatcher_host.cc

 // 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.
 
 #include "content/browser/service_worker/service_worker_dispatcher_host.h"
 
 #include <utility>
 
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
@@ skipping 1022 matching lines @@
     if (ServiceWorkerUtils::IsBrowserAssignedProviderId(info.provider_id)) {
       bad_message::ReceivedBadMessage(
           this, bad_message::SWDH_PROVIDER_CREATED_NO_HOST);
       return;
     }
     GetContext()->AddProviderHost(ServiceWorkerProviderHost::Create(
         render_process_id_, std::move(info), GetContext()->AsWeakPtr(), this));
   }
 }
 
-void ServiceWorkerDispatcherHost::OnProviderDestroyed(int provider_id) {
-  TRACE_EVENT0("ServiceWorker",
-               "ServiceWorkerDispatcherHost::OnProviderDestroyed");
-  if (!GetContext())
-    return;
-  if (!GetContext()->GetProviderHost(render_process_id_, provider_id)) {
-    // PlzNavigate: in some cancellation of navigation cases, it is possible
-    // for the pre-created hoist to have been destroyed before being claimed by
-    // the renderer. The provider is then destroyed in the renderer, and no
-    // matching host will be found.
-    if (!IsBrowserSideNavigationEnabled() ||
-        !ServiceWorkerUtils::IsBrowserAssignedProviderId(provider_id)) {
-      bad_message::ReceivedBadMessage(
-          this, bad_message::SWDH_PROVIDER_DESTROYED_NO_HOST);
-    }
-    return;
-  }
-  GetContext()->RemoveProviderHost(render_process_id_, provider_id);
-}
-
 void ServiceWorkerDispatcherHost::OnSetHostedVersionId(int provider_id,
                                                        int64_t version_id,
                                                        int embedded_worker_id) {
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerDispatcherHost::OnSetHostedVersionId");
   if (!GetContext())
     return;
   ServiceWorkerProviderHost* provider_host =
       GetContext()->GetProviderHost(render_process_id_, provider_id);
   if (!provider_host) {
@@ skipping 707 matching lines @@
   if (!handle) {
     bad_message::ReceivedBadMessage(this,
                                     bad_message::SWDH_TERMINATE_BAD_HANDLE);
     return;
   }
   handle->version()->StopWorker(
       base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
 }
 
 }  // namespace content