Limit requests for which link headers can install service workers to secure contexts.

content/browser/service_worker/service_worker_request_handler.cc

 // Copyright 2014 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_request_handler.h"
 
 #include <string>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 160 matching lines @@
   if (!provider_host || !provider_host->IsContextAlive())
     return;
 
   FinalizeHandlerInitialization(request, provider_host, blob_storage_context,
                                 skip_service_worker, request_mode,
                                 credentials_mode, redirect_mode, resource_type,
                                 request_context_type, frame_type, body);
 }
 
 ServiceWorkerRequestHandler* ServiceWorkerRequestHandler::GetHandler(
-    net::URLRequest* request) {
+    const net::URLRequest* request) {
   return static_cast<ServiceWorkerRequestHandler*>(
       request->GetUserData(&kUserDataKey));
 }
 
 std::unique_ptr<net::URLRequestInterceptor>
 ServiceWorkerRequestHandler::CreateInterceptor(
     ResourceContext* resource_context) {
   return std::unique_ptr<net::URLRequestInterceptor>(
       new ServiceWorkerRequestInterceptor(resource_context));
 }
 
 bool ServiceWorkerRequestHandler::IsControlledByServiceWorker(
-    net::URLRequest* request) {
+    const net::URLRequest* request) {
   ServiceWorkerRequestHandler* handler = GetHandler(request);
   if (!handler || !handler->provider_host_)
     return false;
   return handler->provider_host_->associated_registration() ||
          handler->provider_host_->running_hosted_version();
 }
 
+ServiceWorkerProviderHost* ServiceWorkerRequestHandler::GetProviderHost(
+    const net::URLRequest* request) {
+  ServiceWorkerRequestHandler* handler = GetHandler(request);
+  return handler ? handler->provider_host_.get() : nullptr;
+}
+
 void ServiceWorkerRequestHandler::PrepareForCrossSiteTransfer(
     int old_process_id) {
   CHECK(!IsBrowserSideNavigationEnabled());
   if (!provider_host_ || !context_)
     return;
   old_process_id_ = old_process_id;
   old_provider_id_ = provider_host_->provider_id();
   host_for_cross_site_transfer_ = context_->TransferProviderHostOut(
       old_process_id, provider_host_->provider_id());
   DCHECK_EQ(provider_host_.get(), host_for_cross_site_transfer_.get());
@@ skipping 37 matching lines @@
     ResourceType resource_type)
     : context_(context),
       provider_host_(provider_host),
       blob_storage_context_(blob_storage_context),
       resource_type_(resource_type),
       old_process_id_(0),
       old_provider_id_(kInvalidServiceWorkerProviderId) {
 }
 
 }  // namespace content