Chromium-side plumbing for ServiceWorker -> Document postMessage (2/3)

content/browser/service_worker/service_worker_version.cc

Index: content/browser/service_worker/service_worker_version.cc
diff --git a/content/browser/service_worker/service_worker_version.cc b/content/browser/service_worker/service_worker_version.cc
index 592f88b3095469d69db598ee3e20809836c127b5..8856044a7973394c2cf7059e76eea7f58af59aea 100644
--- a/content/browser/service_worker/service_worker_version.cc
+++ b/content/browser/service_worker/service_worker_version.cc
@@ -6,6 +6,7 @@
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
+#include "base/strings/string16.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
 #include "content/browser/service_worker/embedded_worker_registry.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
@@ -429,6 +430,8 @@ bool ServiceWorkerVersion::OnMessageReceived(const IPC::Message& message) {
                         OnFetchEventFinished)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_SyncEventFinished,
                         OnSyncEventFinished)
+    IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_PostMessageToDocument,
+                        OnPostMessageToDocument)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -547,4 +550,17 @@ void ServiceWorkerVersion::OnSyncEventFinished(
   sync_callbacks_.Remove(request_id);
 }
 
+void ServiceWorkerVersion::OnPostMessageToDocument(
+    int client_id,
+    const base::string16& message,
+    const std::vector<int>& sent_message_port_ids) {
+  ServiceWorkerProviderHost* provider_host =
+      controllee_by_id_.Lookup(client_id);
+  if (!provider_host) {
+    // The client may already have been closed, just ignore.
+    return;
+  }
+  provider_host->PostMessage(message, sent_message_port_ids);
+}
+
 }  // namespace content