More scaffolding, add class ServiceWorkerProviderHost.

content/browser/service_worker/service_worker_dispatcher_host.cc

Index: content/browser/service_worker/service_worker_dispatcher_host.cc
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.cc b/content/browser/service_worker/service_worker_dispatcher_host.cc
index 4cee0e102e3fbde729fbce0b551fa85555ff1002..696c5c1867bd8ee95b9c45ce2c8b0ff3e4cf97d0 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.cc
+++ b/content/browser/service_worker/service_worker_dispatcher_host.cc
@@ -7,6 +7,7 @@
 #include "base/strings/utf_string_conversions.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_provider_host.h"
 #include "content/common/service_worker_messages.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerError.h"
@@ -31,10 +32,13 @@ int64 NextWorkerId() {
 }  // namespace
 
 ServiceWorkerDispatcherHost::ServiceWorkerDispatcherHost(
-    int render_process_id) {
+    int render_process_id)
+    : render_process_id_(render_process_id) {
 }
 
 ServiceWorkerDispatcherHost::~ServiceWorkerDispatcherHost() {
+  if (context_)
+    context_->RemoveAllProviderHostsForProcess(render_process_id_);
 }
 
 void ServiceWorkerDispatcherHost::Init(
@@ -49,6 +53,10 @@ void ServiceWorkerDispatcherHost::Init(
   context_ = context_wrapper->context()->AsWeakPtr();
 }
 
+void ServiceWorkerDispatcherHost::OnDestruct() const {
+  BrowserThread::DeleteOnIOThread::Destruct(this);
+}
+
 bool ServiceWorkerDispatcherHost::OnMessageReceived(
     const IPC::Message& message,
     bool* message_was_ok) {
@@ -62,6 +70,10 @@ bool ServiceWorkerDispatcherHost::OnMessageReceived(
                         OnRegisterServiceWorker)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_UnregisterServiceWorker,
                         OnUnregisterServiceWorker)
+    IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_ProviderCreated,
+                        OnProviderCreated)
+    IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_ProviderDestroyed,
+                        OnProviderDestroyed)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -116,4 +128,26 @@ void ServiceWorkerDispatcherHost::OnUnregisterServiceWorker(int32 thread_id,
   Send(new ServiceWorkerMsg_ServiceWorkerUnregistered(thread_id, request_id));
 }
 
+void ServiceWorkerDispatcherHost::OnProviderCreated(int provider_id) {
+  if (!context_)
+    return;
+  if (context_->GetProviderHost(render_process_id_, provider_id)) {
+    BadMessageReceived();
+    return;
+  }
+  scoped_ptr<ServiceWorkerProviderHost> provider_host(
+       new ServiceWorkerProviderHost(render_process_id_, provider_id));
+  context_->AddProviderHost(provider_host.Pass());
+}
+
+void ServiceWorkerDispatcherHost::OnProviderDestroyed(int provider_id) {
+  if (!context_)
+    return;
+  if (!context_->GetProviderHost(render_process_id_, provider_id)) {
+    BadMessageReceived();
+    return;
+  }
+  context_->RemoveProviderHost(render_process_id_, provider_id);
+}
+
 }  // namespace content