Identify service worker version at main resource load time.

content/common/service_worker/service_worker_messages.h

Index: content/common/service_worker/service_worker_messages.h
diff --git a/content/common/service_worker/service_worker_messages.h b/content/common/service_worker/service_worker_messages.h
index 135761f9a21049f9ef480de9ae1c2b22a618a28f..ee606744156d8382cd4d64c86004af749bfd016b 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -87,6 +87,13 @@ IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_ProviderCreated,
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_ProviderDestroyed,
                      int /* provider_id */)
 
+// Informs the browser that |provider_id| is associated

[dcheng, 2014/03/17 22:12:10]

The comment for this block of IPC messages is "Messages sent from the browser to
the child process.". But this seems to be a message from the child to the
browser?

[michaeln, 2014/03/17 22:53:58]

You're right, a bunch of them (most i think) are in the wrong section, i'll move
them.

[michaeln, 2014/03/17 23:27:04]

Done.

+// with a service worker script running context and
+// |version_id| identifies which ServcieWorkerVersion.
+IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_SetVersionId,
+                     int /* provider_id */,
+                     int64 /* version_id */)
+
 // Informs the browser of a new scriptable API client in the child process.
 IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_AddScriptClient,
                      int /* thread_id */,