PlzNavigate: Make ServiceWorker work with PlzNavigate.

content/browser/service_worker/service_worker_context_core.cc

Index: content/browser/service_worker/service_worker_context_core.cc
diff --git a/content/browser/service_worker/service_worker_context_core.cc b/content/browser/service_worker/service_worker_context_core.cc
index 8e3752ef4be61496dac3b264fb6115ebc10960a0..0660981bde837cf40757a5bdc6b7a7e9c413e252 100644
--- a/content/browser/service_worker/service_worker_context_core.cc
+++ b/content/browser/service_worker/service_worker_context_core.cc
@@ -31,6 +31,7 @@
 #include "url/gurl.h"
 
 namespace content {
+
 namespace {
 
 void SuccessCollectorCallback(const base::Closure& done_closure,
@@ -276,6 +277,33 @@ ServiceWorkerContextCore::GetClientProviderHostIterator(const GURL& origin) {
       providers_.get(), base::Bind(IsSameOriginClientProviderHost, origin)));
 }
 
+// PlzNavigate
+void ServiceWorkerContextCore::AddNavigationProviderHost(
+    scoped_ptr<ServiceWorkerProviderHost> provider_host) {
+  linked_ptr<ServiceWorkerProviderHost> host_link(provider_host.release());
+  auto result = navigation_provider_host_map_.insert(
+      std::make_pair(host_link->provider_id(), host_link));
+  DCHECK(result.second) << "Inserting a duplicate item.";
+}
+
+// PlzNavigate
+scoped_ptr<ServiceWorkerProviderHost>
+ServiceWorkerContextCore::TakeNavigationProviderHost(int provider_id) {
+  auto iter = navigation_provider_host_map_.find(provider_id);
+  if (iter == navigation_provider_host_map_.end())
+    return nullptr;
+
+  scoped_ptr<ServiceWorkerProviderHost> provider_host(iter->second.release());
+  navigation_provider_host_map_.erase(iter);
+  return provider_host.Pass();
+}
+
+// PlzNavigate
+void ServiceWorkerContextCore::RemoveNavigationProviderHost(int provider_id) {
+  scoped_ptr<ServiceWorkerProviderHost> provider_host =
+      TakeNavigationProviderHost(provider_id);
+}
+
 void ServiceWorkerContextCore::RegisterProviderHostByClientID(
     const std::string& client_uuid,
     ServiceWorkerProviderHost* provider_host) {