More scaffolding, add class ServiceWorkerProviderHost.

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 9cb2cbecef8b2969c06f0e9e6302e0cd5b85cf09..09f03575d2c9fadc4c4a2537a5fa32030b2dcffb 100644
--- a/content/browser/service_worker/service_worker_context_core.cc
+++ b/content/browser/service_worker/service_worker_context_core.cc
@@ -26,12 +26,33 @@ ServiceWorkerContextCore::ServiceWorkerContextCore(
     path_ = user_data_directory.Append(kServiceWorkerDirectory);
 }
 
+ServiceWorkerContextCore::~ServiceWorkerContextCore() {
+}
+
+ServiceWorkerProviderHost* ServiceWorkerContextCore::GetProviderHost(
+    int process_id, int provider_id) {
+  ProcessToProvidersMap::const_iterator it1 = providers_map_.find(process_id);
+  if (it1 == providers_map_.end())
+    return NULL;
+  ServiceWorkerProviderHostMap::const_iterator it2 =
+      it1->second->find(provider_id);
+  if (it2 == it1->second->end())
+    return NULL;
+  return it2->second;
+}
+
+void ServiceWorkerContextCore::AttachProviderHostMap(
+    int process_id, ServiceWorkerProviderHostMap* map) {
+  providers_map_[process_id] = map;
+}
+
+void ServiceWorkerContextCore::DetachProviderHostMap(int process_id) {
+  providers_map_.erase(process_id);
+}
+
 bool ServiceWorkerContextCore::IsEnabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableServiceWorker);
 }
 
-ServiceWorkerContextCore::~ServiceWorkerContextCore() {
-}
-
 }  // namespace content