Reland: service worker: Don't control a subframe of an insecure context

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 05f22dfb46b64d799e5f77e0d9c32798ce9e4b7b..412c0fc02fc48c98de5f25c487f200569629624f 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -203,10 +203,21 @@ IPC_MESSAGE_CONTROL5(
 // MSG_ROUTING_NONE. |provider_type| identifies whether this provider is for
 // Service Worker controllees (documents and Shared Workers) or for controllers
 // (Service Workers).
-IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_ProviderCreated,
+//
+// |is_parent_frame_secure| is false if the provider is created for a
+// document whose parent frame is not secure from the point of view of the
+// document; that is, blink::WebFrame::canHaveSecureChild() returns false.
+// This doesn't mean the document is necessarily an insecure context,
+// because the document may have a URL whose scheme is granted an exception
+// that allows bypassing the ancestor secure context check. See the
+// comment in blink::Document::isSecureContextImpl for more details.
+// If the provider is not created for a document, or the document does not have
+// a parent frame, |is_parent_frame_secure| is true.
+IPC_MESSAGE_CONTROL4(ServiceWorkerHostMsg_ProviderCreated,
                      int /* provider_id */,
                      int /* route_id */,
-                     content::ServiceWorkerProviderType /* provider_type */)
+                     content::ServiceWorkerProviderType /* provider_type */,
+                     bool /* is_parent_frame_secure */)
 
 // Informs the browser of a ServiceWorkerProvider being destroyed.
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_ProviderDestroyed,