Introduce a new ResourceRequesterInfo type for NavigationPreload.

content/browser/loader/resource_requester_info.cc

Index: content/browser/loader/resource_requester_info.cc
diff --git a/content/browser/loader/resource_requester_info.cc b/content/browser/loader/resource_requester_info.cc
index 3e71b2967ac306eb47b4e8affe718d16a57f210e..7b4f1e502475f8e9e8ca3b8ac3c76e671d0d8f00 100644
--- a/content/browser/loader/resource_requester_info.cc
+++ b/content/browser/loader/resource_requester_info.cc
@@ -10,10 +10,25 @@
 #include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/resource_context.h"
+#include "content/public/common/browser_side_navigation_policy.h"
 #include "storage/browser/fileapi/file_system_context.h"
 
 namespace content {
 
+namespace {
+
+void GetContextsCallbackForNavigationPreload(
+    scoped_refptr<ServiceWorkerContextWrapper> service_worker_context,
+    ResourceType resource_type,
+    ResourceContext** resource_context_out,
+    net::URLRequestContext** request_context_out) {
+  *resource_context_out = service_worker_context->resource_context();
+  *request_context_out = (*resource_context_out)->GetRequestContext();
+}
+
+}  // namespace
+
 ResourceRequesterInfo::ResourceRequesterInfo(
     RequesterType type,
     int child_id,
@@ -85,4 +100,31 @@ ResourceRequesterInfo::CreateForDownloadOrPageSave(int child_id) {
       GetContextsCallback()));
 }
 
+scoped_refptr<ResourceRequesterInfo>
+ResourceRequesterInfo::CreateForNavigationPreload(
+    ResourceRequesterInfo* original_request_info) {
+  GetContextsCallback get_contexts_callback =
+      original_request_info->get_contexts_callback_;
+  if (IsBrowserSideNavigationEnabled()) {
+    DCHECK(original_request_info->IsBrowserSideNavigation());
+    DCHECK(!get_contexts_callback);
+    DCHECK(original_request_info->service_worker_context());
+    // The requester info for browser side navigation doesn't have the
+    // get_contexts_callback. So create the callback here which gets the
+    // ResourceContext and the URLRequestContext form ServiceWorkerContext.
+    get_contexts_callback =
+        base::Bind(&GetContextsCallbackForNavigationPreload,
+                   scoped_refptr<ServiceWorkerContextWrapper>(
+                       original_request_info->service_worker_context()));
+  } else {
+    DCHECK(original_request_info->IsRenderer());
+    DCHECK(get_contexts_callback);
+  }
+
+  return scoped_refptr<ResourceRequesterInfo>(new ResourceRequesterInfo(
+      RequesterType::NAVIGATION_PRELOAD, -1, nullptr /* appcache_service */,
+      nullptr /* blob_storage_context */, nullptr /* file_system_context */,
+      original_request_info->service_worker_context(), get_contexts_callback));
+}
+
 }  // namespace content