Reland 'Convert //net and //chromecast to std::unordered_*'

content/public/test/test_download_request_handler.cc

 // Copyright 2015 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/public/test/test_download_request_handler.h"
 
 #include <inttypes.h>
 
 #include <utility>
 
@@ skipping 480 matching lines @@
       new Interceptor(url, client_task_runner));
   base::WeakPtr<Interceptor> weak_reference =
       interceptor->weak_ptr_factory_.GetWeakPtr();
   net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
   filter->AddUrlInterceptor(url, std::move(interceptor));
   return weak_reference;
 }
 
 void TestDownloadRequestHandler::Interceptor::Unregister() {
   net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
-  filter->RemoveUrlHandler(url_);
+  GURL url = url_;  // Make a copy as |this| will be deleted.
+  filter->RemoveUrlHandler(url);
   // We are deleted now since the filter owned |this|.
 }
 
 void TestDownloadRequestHandler::Interceptor::SetJobFactory(
     const JobFactory& job_factory) {
   job_factory_ = job_factory;
 }
 
 void TestDownloadRequestHandler::Interceptor::GetAndResetCompletedRequests(
     TestDownloadRequestHandler::CompletedRequests* requests) {
@@ skipping 157 matching lines @@
   base::RunLoop run_loop;
   BrowserThread::PostTaskAndReply(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&Interceptor::GetAndResetCompletedRequests, interceptor_,
                  requests),
       run_loop.QuitClosure());
   run_loop.Run();
 }
 
 }  // namespace content