PlzNavigate: detect when a ServiceWorker is present

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/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/message_port_service.h"
 #include "content/browser/service_worker/embedded_worker_registry.h"
 #include "content/browser/service_worker/embedded_worker_status.h"
 #include "content/browser/service_worker/service_worker_client_utils.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/browser/service_worker/service_worker_handle.h"
-#include "content/browser/service_worker/service_worker_navigation_handle_core.h"
 #include "content/browser/service_worker/service_worker_registration.h"
 #include "content/browser/service_worker/service_worker_registration_handle.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
 #include "content/common/service_worker/service_worker_messages.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/common/service_worker/service_worker_utils.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/browser_side_navigation_policy.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/origin_util.h"
@@ skipping 720 matching lines @@
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerDispatcherHost::OnProviderCreated");
   if (!GetContext())
     return;
   if (GetContext()->GetProviderHost(render_process_id_, provider_id)) {
     bad_message::ReceivedBadMessage(this,
                                     bad_message::SWDH_PROVIDER_CREATED_NO_HOST);
     return;
   }
 
-  std::unique_ptr<ServiceWorkerProviderHost> provider_host;
-  if (IsBrowserSideNavigationEnabled() &&
-      ServiceWorkerUtils::IsBrowserAssignedProviderId(provider_id)) {
-    // PlzNavigate
-    // Retrieve the provider host previously created for navigation requests.
-    ServiceWorkerNavigationHandleCore* navigation_handle_core =
-        GetContext()->GetNavigationHandleCore(provider_id);
-    if (navigation_handle_core != nullptr) {
-      provider_host = navigation_handle_core->RetrievePreCreatedHost();
-      provider_host->set_parent_frame_secure(is_parent_frame_secure);
-    }
-
-    // If no host is found, the navigation has been cancelled in the meantime.
-    // Just return as the navigation will be stopped in the renderer as well.
-    if (provider_host == nullptr)
-      return;
-    DCHECK_EQ(SERVICE_WORKER_PROVIDER_FOR_WINDOW, provider_type);
-    provider_host->CompleteNavigationInitialized(render_process_id_, route_id,
-                                                 this);
-  } else {
-    if (ServiceWorkerUtils::IsBrowserAssignedProviderId(provider_id)) {
-      bad_message::ReceivedBadMessage(
-          this, bad_message::SWDH_PROVIDER_CREATED_NO_HOST);
-      return;
-    }
-    ServiceWorkerProviderHost::FrameSecurityLevel parent_frame_security_level =
-        is_parent_frame_secure
-            ? ServiceWorkerProviderHost::FrameSecurityLevel::SECURE
-            : ServiceWorkerProviderHost::FrameSecurityLevel::INSECURE;
-    provider_host = std::unique_ptr<ServiceWorkerProviderHost>(
-        new ServiceWorkerProviderHost(
-            render_process_id_, route_id, provider_id, provider_type,
-            parent_frame_security_level, GetContext()->AsWeakPtr(), this));
-  }
+  ServiceWorkerProviderHost::FrameSecurityLevel parent_frame_security_level =
+      is_parent_frame_secure
+          ? ServiceWorkerProviderHost::FrameSecurityLevel::SECURE
+          : ServiceWorkerProviderHost::FrameSecurityLevel::INSECURE;
+  std::unique_ptr<ServiceWorkerProviderHost> provider_host =
+      std::unique_ptr<ServiceWorkerProviderHost>(new ServiceWorkerProviderHost(
+          render_process_id_, route_id, provider_id, provider_type,
+          parent_frame_security_level, GetContext()->AsWeakPtr(), this));
   GetContext()->AddProviderHost(std::move(provider_host));
 }
 
 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
@@ skipping 604 matching lines @@
   if (!handle) {
     bad_message::ReceivedBadMessage(this,
                                     bad_message::SWDH_TERMINATE_BAD_HANDLE);
     return;
   }
   handle->version()->StopWorker(
       base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
 }
 
 }  // namespace content