[Android] Refactor the native test wrappers. (RELAND)

components/test/android/browsertests_apk/components_browser_tests_android.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.
-
-// This class sets up the environment for running the content browser tests
-// inside an android application.
-
-#include <android/log.h>
-#include <unistd.h>
-
-#include "base/android/base_jni_registrar.h"
-#include "base/android/fifo_utils.h"
-#include "base/android/jni_android.h"
-#include "base/android/jni_string.h"
-#include "base/android/library_loader/library_loader_hooks.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/base_switches.h"
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "base/strings/string_tokenizer.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "content/public/common/content_switches.h"
-#include "content/public/test/test_launcher.h"
-#include "jni/ComponentsBrowserTestsActivity_jni.h"
-#include "media/base/media_switches.h"
-#include "testing/android/native_test/native_test_util.h"
-
-using testing::native_test_util::ArgsToArgv;
-using testing::native_test_util::ParseArgsFromCommandLineFile;
-using testing::native_test_util::ScopedMainEntryLogger;
-
-// The main function of the program to be wrapped as an apk.
-extern int main(int argc, char** argv);
-
-namespace {
-
-// The test runner script writes the command line file in
-// "/data/local/tmp".
-static const char kCommandLineFilePath[] =
-    "/data/local/tmp/components-browser-tests-command-line";
-
-}  // namespace
-
-namespace components {
-
-// TODO(jaekyun): Refactor and deduplicate with
-// testing/android/native_test/native_test_launcher.cc (http://crbug.com/476410)
-static void RunTests(JNIEnv* env,
-                     jobject obj,
-                     jstring jfiles_dir,
-                     jobject app_context) {
-  // Command line basic initialization, will be fully initialized later.
-  static const char* const kInitialArgv[] = {"ComponentsBrowserTestsActivity"};
-  base::CommandLine::Init(arraysize(kInitialArgv), kInitialArgv);
-
-  // Set the application context in base.
-  base::android::ScopedJavaLocalRef<jobject> scoped_context(
-      env, env->NewLocalRef(app_context));
-  base::android::InitApplicationContext(env, scoped_context);
-  base::android::RegisterJni(env);
-
-  std::vector<std::string> args;
-  ParseArgsFromCommandLineFile(kCommandLineFilePath, &args);
-
-  std::vector<char*> argv;
-  int argc = ArgsToArgv(args, &argv);
-
-  // Fully initialize command line with arguments.
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-  command_line->AppendArguments(base::CommandLine(argc, &argv[0]), false);
-
-  // Append required switches.
-  command_line->AppendSwitch(content::kSingleProcessTestsFlag);
-  command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
-  command_line->AppendSwitch(switches::kUseFakeUIForMediaStream);
-  // Specify a socket name to not conflict with the default one used
-  // in content_shell.
-  command_line->AppendSwitchASCII(switches::kRemoteDebuggingSocketName,
-                                  "components_browsertests_devtools_remote");
-
-  // Create fifo and redirect stdout and stderr to it.
-  base::FilePath files_dir(
-      base::android::ConvertJavaStringToUTF8(env, jfiles_dir));
-  base::FilePath fifo_path(files_dir.Append(base::FilePath("test.fifo")));
-  base::android::CreateFIFO(fifo_path, 0666);
-  base::android::RedirectStream(stdout, fifo_path, "w+");
-  dup2(STDOUT_FILENO, STDERR_FILENO);
-
-  ScopedMainEntryLogger scoped_main_entry_logger;
-  main(argc, &argv[0]);
-}
-
-bool RegisterComponentsBrowserTestsAndroid(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-}  // namespace components