Introduce ResourceRequesterInfo to abstract the requester of resource request

content/browser/service_worker/service_worker_fetch_dispatcher.cc

Index: content/browser/service_worker/service_worker_fetch_dispatcher.cc
diff --git a/content/browser/service_worker/service_worker_fetch_dispatcher.cc b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
index 64aaa7c8cef5a6a879251a07a93c748ab0a5f163..052d7952e65994afd76a309a3cef4c5365d199a3 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.cc
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
@@ -15,6 +15,7 @@
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_message_filter.h"

[yhirano, 2016/11/10 06:42:30]

Not needed.

[horo, 2016/11/10 14:46:33]

Done.

 #include "content/browser/loader/resource_request_info_impl.h"
+#include "content/browser/loader/resource_requester_info.h"
 #include "content/browser/loader/url_loader_factory_impl.h"
 #include "content/browser/service_worker/embedded_worker_status.h"
 #include "content/browser/service_worker/service_worker_version.h"
@@ -366,19 +367,22 @@ void ServiceWorkerFetchDispatcher::MaybeStartNavigationPreload(
     // Origin-Trial for NavigationPreload.
     return;
   }
+
+  const ResourceRequestInfoImpl* original_info =
+      ResourceRequestInfoImpl::ForRequest(original_request);
   if (IsBrowserSideNavigationEnabled()) {
     // TODO(horo): Support NavigationPreload with PlzNavigate.
+    DCHECK(original_info->requester_info().IsBrowserSideNavigation());
     NOTIMPLEMENTED();
     return;
   }
+  DCHECK(original_info->requester_info().IsRenderer());
+  if (!original_info->requester_info().filter())
+    return;
 
   DCHECK(!url_loader_factory_);
-  const ResourceRequestInfoImpl* original_info =
-      ResourceRequestInfoImpl::ForRequest(original_request);
-  if (!original_info->filter())
-    return;
   mojom::URLLoaderFactoryPtr factory;
-  URLLoaderFactoryImpl::Create(original_info->filter(),
+  URLLoaderFactoryImpl::Create(original_info->requester_info().clone(),
                                mojo::GetProxy(&url_loader_factory_));
 
   preload_handle_ = mojom::FetchEventPreloadHandle::New();