[Cronet] Get Cronet performance test running again

components/cronet/android/test/cronet_test_util.cc

+// 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 "components/cronet/android/test/cronet_test_util.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "components/cronet/android/cronet_url_request_context_adapter.h"
+#include "components/cronet/android/test/native_test_server.h"
+#include "components/cronet/android/url_request_context_adapter.h"
+#include "jni/CronetTestUtil_jni.h"
+#include "net/dns/host_resolver_impl.h"
+#include "net/dns/mock_host_resolver.h"
+
+namespace cronet {
+
+const char kFakeSdchDomain[] = "fake.sdch.domain";
+// This must match the certificate used
+// (quic_test.example.com.crt and quic_test.example.com.key.pkcs8), and
+// the file served (

[mef, 2016/01/29 17:21:14]

nit: weird line wrapping. cl format?

[pauljensen, 2016/01/29 19:17:11]

I dunno, I just moved this line; I didn't edit it.  It seems like the best spot
to wrap the line.

+// components/cronet/android/test/assets/test/quic_data/simple.txt).
+const char kFakeQuicDomain[] = "test.example.com";
+
+namespace {
+
+// Install host resolver rules to map fake domains to |destination|, usually an
+// IP address.
+void RegisterHostResolverProcHelper(net::URLRequestContext* url_request_context,
+                                    const std::string& destination) {
+  net::HostResolverImpl* resolver =
+      static_cast<net::HostResolverImpl*>(url_request_context->host_resolver());
+  scoped_refptr<net::RuleBasedHostResolverProc> proc =
+      new net::RuleBasedHostResolverProc(NULL);
+  proc->AddRule(kFakeSdchDomain, destination);
+  proc->AddRule(kFakeQuicDomain, destination);
+  resolver->set_proc_params_for_test(
+      net::HostResolverImpl::ProcTaskParams(proc.get(), 1u));
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_CronetTestUtil_onHostResolverProcRegistered(env);
+}
+
+void RegisterHostResolverProcOnNetworkThread(
+    CronetURLRequestContextAdapter* context_adapter,
+    const std::string& destination) {
+  RegisterHostResolverProcHelper(context_adapter->GetURLRequestContext(),
+                                 destination);
+}
+
+// TODO(xunjieli): Delete this once legacy API is removed.
+void RegisterHostResolverProcOnNetworkThreadLegacyAPI(
+    URLRequestContextAdapter* context_adapter,
+    const std::string& destination) {
+  RegisterHostResolverProcHelper(context_adapter->GetURLRequestContext(),
+                                 destination);
+}
+
+}  // namespace
+
+void RegisterHostResolverProc(JNIEnv* env,
+                              const JavaParamRef<jclass>& jcaller,
+                              jlong jadapter,
+                              jboolean jlegacy_api,
+                              const JavaParamRef<jstring>& jdestination) {
+  std::string destination(
+      base::android::ConvertJavaStringToUTF8(env, jdestination));
+  if (jlegacy_api == JNI_TRUE) {
+    URLRequestContextAdapter* context_adapter =
+        reinterpret_cast<URLRequestContextAdapter*>(jadapter);
+    context_adapter->PostTaskToNetworkThread(
+        FROM_HERE, base::Bind(&RegisterHostResolverProcOnNetworkThreadLegacyAPI,
+                              base::Unretained(context_adapter), destination));
+  } else {
+    CronetURLRequestContextAdapter* context_adapter =
+        reinterpret_cast<CronetURLRequestContextAdapter*>(jadapter);
+    context_adapter->PostTaskToNetworkThread(
+        FROM_HERE, base::Bind(&RegisterHostResolverProcOnNetworkThread,
+                              base::Unretained(context_adapter), destination));
+  }
+}
+
+bool RegisterCronetTestUtil(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace cronet