Revert of Allow use of Mojo/V8 ProxyResolvers with URLRequestContextBuilder.

net/proxy/proxy_script_fetcher_impl_unittest.cc

Index: net/proxy/proxy_script_fetcher_impl_unittest.cc
diff --git a/net/proxy/proxy_script_fetcher_impl_unittest.cc b/net/proxy/proxy_script_fetcher_impl_unittest.cc
index a1a7e5ea383f5d4a0fd7a6f84e742884dbecee0f..c1bebe744903ef49b1e89a770aaa2d02dff9adcb 100644
--- a/net/proxy/proxy_script_fetcher_impl_unittest.cc
+++ b/net/proxy/proxy_script_fetcher_impl_unittest.cc
@@ -39,7 +39,7 @@
 #include "net/socket/transport_client_socket_pool.h"
 #include "net/ssl/ssl_config_service_defaults.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
-#include "net/test/embedded_test_server/simple_connection_listener.h"
+#include "net/test/embedded_test_server/embedded_test_server_connection_listener.h"
 #include "net/test/gtest_util.h"
 #include "net/url_request/url_request_context_storage.h"
 #include "net/url_request/url_request_file_job.h"
@@ -72,6 +72,36 @@
 struct FetchResult {
   int code;
   base::string16 text;
+};
+
+// Waits for the specified number of connection attempts to be seen.
+class WaitForConnectionsListener
+    : public test_server::EmbeddedTestServerConnectionListener {
+ public:
+  explicit WaitForConnectionsListener(int expected_num_connections)
+      : expected_num_connections_(expected_num_connections),
+        task_runner_(base::SequencedTaskRunnerHandle::Get()) {}
+
+  void AcceptedSocket(const StreamSocket& socket) override {
+    ++seen_connections_;
+    EXPECT_LE(seen_connections_, expected_num_connections_);
+    if (expected_num_connections_ == seen_connections_)
+      task_runner_->PostTask(FROM_HERE, run_loop_.QuitClosure());
+  }
+
+  void ReadFromSocket(const StreamSocket& socket, int rv) override {}
+
+  void Wait() { run_loop_.Run(); }
+
+ private:
+  int seen_connections_ = 0;
+  int expected_num_connections_;
+
+  scoped_refptr<base::SequencedTaskRunner> task_runner_;
+
+  base::RunLoop run_loop_;
+
+  DISALLOW_COPY_AND_ASSIGN(WaitForConnectionsListener);
 };
 
 // A non-mock URL request which can access http:// and file:// urls, in the case
@@ -513,9 +543,7 @@
   int num_requests = 10 + ClientSocketPoolManager::max_sockets_per_pool(
                               HttpNetworkSession::NORMAL_SOCKET_POOL);
 
-  net::test_server::SimpleConnectionListener connection_listener(
-      num_requests, net::test_server::SimpleConnectionListener::
-                        FAIL_ON_ADDITIONAL_CONNECTIONS);
+  WaitForConnectionsListener connection_listener(num_requests);
   test_server_.SetConnectionListener(&connection_listener);
   ASSERT_TRUE(test_server_.Start());
 
@@ -534,7 +562,7 @@
     pac_fetchers.push_back(std::move(pac_fetcher));
   }
 
-  connection_listener.WaitForConnections();
+  connection_listener.Wait();
   // None of the callbacks should have been invoked - all jobs should still be
   // hung.
   EXPECT_FALSE(callback.have_result());