Revert of Moving gRPC support interfaces out of cronet and into a new component.

components/grpc_support/test/get_stream_engine.cc

Index: components/grpc_support/test/get_stream_engine.cc
diff --git a/components/grpc_support/test/get_stream_engine.cc b/components/grpc_support/test/get_stream_engine.cc
deleted file mode 100644
index 0fe5aff9a4cf1ca3a97dafae4b45c07bdfb83df9..0000000000000000000000000000000000000000
--- a/components/grpc_support/test/get_stream_engine.cc
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2016 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 "base/macros.h"
-#include "base/memory/ptr_util.h"
-#include "base/memory/ref_counted.h"
-#include "base/threading/thread.h"
-#include "components/grpc_support/include/bidirectional_stream_c.h"
-#include "components/grpc_support/test/quic_test_server.h"
-#include "net/cert/mock_cert_verifier.h"
-#include "net/dns/mapped_host_resolver.h"
-#include "net/dns/mock_host_resolver.h"
-#include "net/http/http_server_properties_impl.h"
-#include "net/url_request/url_request_test_util.h"
-
-namespace grpc_support {
-namespace {
-
-// URLRequestContextGetter for BidirectionalStreamTest. This is used instead of
-// net::TestURLRequestContextGetter because the URLRequestContext needs to be
-// created on the test_io_thread_ for the test, and TestURLRequestContextGetter
-// does not allow for lazy instantiation of the URLRequestContext if additional
-// setup is required.
-class BidirectionalStreamTestURLRequestContextGetter
-    : public net::URLRequestContextGetter {
- public:
-  BidirectionalStreamTestURLRequestContextGetter(
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
-      : task_runner_(task_runner) {}
-
-  net::URLRequestContext* GetURLRequestContext() override {
-    if (!request_context_.get()) {
-      request_context_.reset(new net::TestURLRequestContext(
-          true /* delay_initialization */));
-      host_resolver_.reset(new net::MappedHostResolver(
-          net::HostResolver::CreateDefaultResolver(nullptr)));
-      host_resolver_->SetRulesFromString("MAP test.example.com 127.0.0.1,"
-                                         "MAP notfound.example.com ~NOTFOUND");
-      mock_cert_verifier_.reset(new net::MockCertVerifier());
-      mock_cert_verifier_->set_default_result(net::OK);
-      server_properties_.reset(new net::HttpServerPropertiesImpl());
-
-      // Need to enable QUIC for the test server.
-      auto params = base::MakeUnique<net::HttpNetworkSession::Params>();
-      params->enable_quic = true;
-      params->enable_http2 = true;
-      net::AlternativeService alternative_service(net::AlternateProtocol::QUIC,
-                                                  "", kTestServerPort);
-      url::SchemeHostPort quic_hint_server("https", kTestServerDomain,
-                                           kTestServerPort);
-      server_properties_->SetAlternativeService(
-          quic_hint_server, alternative_service, base::Time::Max());
-      params->quic_host_whitelist.insert(kTestServerHost);
-
-      request_context_->set_cert_verifier(mock_cert_verifier_.get());
-      request_context_->set_host_resolver(host_resolver_.get());
-      request_context_->set_http_server_properties(server_properties_.get());
-      request_context_->set_http_network_session_params(std::move(params));
-
-      request_context_->Init();
-    }
-    return request_context_.get();
-  }
-
-  scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
-      const override {
-    return task_runner_;
-  }
-
- private:
-  ~BidirectionalStreamTestURLRequestContextGetter() override {}
-
-  std::unique_ptr<net::HttpServerProperties> server_properties_;
-  std::unique_ptr<net::MockCertVerifier> mock_cert_verifier_;
-  std::unique_ptr<net::MappedHostResolver> host_resolver_;
-  std::unique_ptr<net::TestURLRequestContext> request_context_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(BidirectionalStreamTestURLRequestContextGetter);
-};
-
-}  // namespace
-
-stream_engine* GetTestStreamEngine() {
-  static scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
-  static stream_engine engine;
-  if (request_context_getter_.get() == nullptr) {
-    static base::Thread* test_io_thread_ = new base::Thread(
-        "grpc_support_test_io_thread");
-    base::Thread::Options options;
-    options.message_loop_type = base::MessageLoop::TYPE_IO;
-    DCHECK(test_io_thread_->StartWithOptions(options));
-
-    request_context_getter_ =
-        new BidirectionalStreamTestURLRequestContextGetter(
-            test_io_thread_->task_runner());
-    engine.obj = request_context_getter_.get();
-  }
-  return &engine;
-}
-
-}  // namespace grpc_support