Get rid of URLLoaderFactory in browser-side case

content/browser/site_per_process_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/site_per_process_browsertest.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2372 matching lines @@
     GURL url = embedded_test_server()->GetURL("bar.com", "/title3.html");
     EXPECT_TRUE(embedded_test_server()->ShutdownAndWaitUntilComplete());
     NavigateIframeToURL(shell()->web_contents(), "child-0", url);
   }
 }
 
 namespace {
 class FailingURLLoaderImpl : public mojom::URLLoader {
  public:
   explicit FailingURLLoaderImpl(mojom::URLLoaderClientPtr client) {
+    Start(mojom::URLLoaderAssociatedRequest(), std::move(client));
+  }
+
+ private:
+  void Start(mojom::URLLoaderAssociatedRequest request,
+             mojom::URLLoaderClientPtr client) override {
     ResourceRequestCompletionStatus status;
     status.error_code = net::ERR_NOT_IMPLEMENTED;
     client->OnComplete(status);
   }
-
   void FollowRedirect() override {}
   void SetPriority(net::RequestPriority priority,
                    int32_t intra_priority_value) override {}
 };
 
 class FailingLoadFactory : public mojom::URLLoaderFactory {
  public:
   FailingLoadFactory() {}
   ~FailingLoadFactory() override {}
 
@@ skipping 7783 matching lines @@
   // Go back again.  This should go to foo.com.
   {
     TestNavigationObserver back_observer(web_contents());
     web_contents()->GetController().GoBack();
     back_observer.Wait();
   }
   EXPECT_EQ(foo_url, web_contents()->GetMainFrame()->GetLastCommittedURL());
 }
 
 }  // namespace content