service worker: Pass correct type to ServiceWorkerProviderContext.

This code is for creating a shared worker. Fixes a typo from r681479.

Change-Id: I3a56d8bc84d575f385a840d1e0fca5b3c275ac16
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2470820
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Auto-Submit: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817006}

content/renderer/worker/embedded_shared_worker_stub.cc

@@ -99,7 +99,7 @@ EmbeddedSharedWorkerStub::EmbeddedSharedWorkerStub(
   if (service_worker_container_info) {
     service_worker_provider_context_ =
         base::MakeRefCounted<ServiceWorkerProviderContext>(
-            blink::mojom::ServiceWorkerContainerType::kForDedicatedWorker,
+            blink::mojom::ServiceWorkerContainerType::kForSharedWorker,
             std::move(service_worker_container_info->client_receiver),
             std::move(service_worker_container_info->host_remote),
             std::move(controller_info), subresource_loader_factory_bundle_);