Use Independent URLLoader

content/common/throttling_url_loader.cc

Index: content/common/throttling_url_loader.cc
diff --git a/content/common/throttling_url_loader.cc b/content/common/throttling_url_loader.cc
index 8fed8709ff3491cfc6a45daaea6cc585cf6c5c4e..7f5d5fe1d7c1a1f52097926819726e230af60b01 100644
--- a/content/common/throttling_url_loader.cc
+++ b/content/common/throttling_url_loader.cc
@@ -165,16 +165,12 @@ void ThrottlingURLLoader::StartNow(
   if (factory) {
     DCHECK(!start_loader_callback);
 
-    mojom::URLLoaderAssociatedPtr url_loader;
-    auto url_loader_request = mojo::MakeRequest(&url_loader);
-    url_loader_ = std::move(url_loader);
+    auto url_loader_request = mojo::MakeRequest(&url_loader_);
     factory->CreateLoaderAndStart(std::move(url_loader_request), routing_id,
                                   request_id, options, url_request,
                                   std::move(client), traffic_annotation_);
   } else {
-    mojom::URLLoaderPtr url_loader;
-    auto url_loader_request = mojo::MakeRequest(&url_loader);
-    url_loader_ = std::move(url_loader);
+    auto url_loader_request = mojo::MakeRequest(&url_loader_);
     std::move(start_loader_callback)
         .Run(std::move(url_loader_request), std::move(client));
   }