Implement WebPushProvider.unregister() in Chromium.

content/browser/push_messaging/push_messaging_message_filter.cc

Index: content/browser/push_messaging/push_messaging_message_filter.cc
diff --git a/content/browser/push_messaging/push_messaging_message_filter.cc b/content/browser/push_messaging/push_messaging_message_filter.cc
index 69f0b13a8699a1437a75cf07531a47295bb01143..f138fe7eb13ff56703d778e4e4e7845e7e23e92a 100644
--- a/content/browser/push_messaging/push_messaging_message_filter.cc
+++ b/content/browser/push_messaging/push_messaging_message_filter.cc
@@ -74,6 +74,8 @@ bool PushMessagingMessageFilter::OnMessageReceived(
                         OnPermissionStatusRequest)
     IPC_MESSAGE_HANDLER(PushMessagingHostMsg_GetPermissionStatus,
                         OnGetPermissionStatus)
+    IPC_MESSAGE_HANDLER(PushMessagingHostMsg_Unregister,
+                        OnUnregister)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -211,6 +213,25 @@ void PushMessagingMessageFilter::OnGetPermissionStatus(
                  request_id));
 }
 
+void PushMessagingMessageFilter::OnUnregister(
+    int request_id, int64 service_worker_registration_id) {
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  ServiceWorkerRegistration* service_worker_registration =
+      service_worker_context_->context()->GetLiveRegistration(
+          service_worker_registration_id);
+  DCHECK(service_worker_registration);
+  if (!service_worker_registration)
+    return;
+
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&PushMessagingMessageFilter::UnregisterOnUI,
+                 this,
+                 service_worker_registration->pattern().GetOrigin(),
+                 service_worker_registration_id,
+                 request_id));
+}
+
 void PushMessagingMessageFilter::RegisterOnUI(
     const RegisterData& data,
     const std::string& sender_id) {
@@ -267,6 +288,26 @@ void PushMessagingMessageFilter::GetPermissionStatusOnUI(
                                                        permission_status));
 }
 
+
+void PushMessagingMessageFilter::UnregisterOnUI(
+    const GURL& requesting_origin,
+    int64 service_worker_registration_id,
+    int request_id) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  if (!service()) {
+    DidUnregister(request_id, false);
+    return;
+  }
+
+  service()->Unregister(requesting_origin, service_worker_registration_id,
+      base::Bind(&PushMessagingMessageFilter::DidUnregister,
+                 weak_factory_ui_to_ui_.GetWeakPtr(), request_id));
+}
+
+void PushMessagingMessageFilter::DidUnregister(int request_id, bool result) {
+  Send(new PushMessagingMsg_UnregisterResponse(request_id, result));

[johnme, 2014/12/12 15:22:02]

Please remove the registration from SW storage now.

[mlamouri (slow - plz ping), 2014/12/15 11:29:36]

I will do that in a follow-up CL. No need to have a big patch if we can cut
things in bite sized chunks.

+}
+
 void PushMessagingMessageFilter::DidRegister(
     const RegisterData& data,
     const std::string& push_registration_id,