Instantiate ScopedTaskEnvironment in net unittests.

net/url_request/url_request_context_builder_unittest.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 "net/url_request/url_request_context_builder.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
-#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
-#include "base/test/scoped_task_scheduler.h"
 #include "build/build_config.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
 #include "net/http/http_auth_handler.h"
 #include "net/http/http_auth_handler_factory.h"
 #include "net/log/net_log_with_source.h"
 #include "net/ssl/ssl_info.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
 #include "net/url_request/url_request.h"
@@ skipping 31 matching lines @@
                : ERR_UNSUPPORTED_AUTH_SCHEME;
   }
 
  private:
   int return_code_;
   std::string supported_scheme_;
 };
 
 class URLRequestContextBuilderTest : public PlatformTest {
  protected:
-  URLRequestContextBuilderTest()
-      : scoped_task_scheduler_(base::MessageLoop::current()) {
+  URLRequestContextBuilderTest() {
     test_server_.AddDefaultHandlers(
         base::FilePath(FILE_PATH_LITERAL("net/data/url_request_unittest")));
 #if defined(OS_LINUX) || defined(OS_ANDROID)
     builder_.set_proxy_config_service(
         base::MakeUnique<ProxyConfigServiceFixed>(ProxyConfig::CreateDirect()));
 #endif  // defined(OS_LINUX) || defined(OS_ANDROID)
   }
 
   EmbeddedTestServer test_server_;
   URLRequestContextBuilder builder_;
-
- private:
-  base::test::ScopedTaskScheduler scoped_task_scheduler_;
 };
 
 TEST_F(URLRequestContextBuilderTest, DefaultSettings) {
   ASSERT_TRUE(test_server_.Start());
 
   std::unique_ptr<URLRequestContext> context(builder_.Build());
   TestDelegate delegate;
   std::unique_ptr<URLRequest> request(context->CreateRequest(
       test_server_.GetURL("/echoheader?Foo"), DEFAULT_PRIORITY, &delegate,
       TRAFFIC_ANNOTATION_FOR_TESTS));
@@ skipping 56 matching lines @@
   // Verify that a handler isn't returned for a bogus scheme.
   EXPECT_EQ(ERR_UNSUPPORTED_AUTH_SCHEME,
             context->http_auth_handler_factory()->CreateAuthHandlerFromString(
                 "Bogus", HttpAuth::AUTH_SERVER, null_ssl_info, gurl,
                 NetLogWithSource(), &handler));
 }
 
 }  // namespace
 
 }  // namespace net