Add (not yet working) content_browsertests target.

chrome/test/base/out_of_proc_test_runner.cc

Index: chrome/test/base/out_of_proc_test_runner.cc
===================================================================
--- chrome/test/base/out_of_proc_test_runner.cc	(revision 103499)
+++ chrome/test/base/out_of_proc_test_runner.cc	(working copy)
@@ -1,640 +0,0 @@
-// Copyright (c) 2011 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 <string>
-#include <vector>
-
-#include "base/command_line.h"
-#include "base/environment.h"
-#include "base/file_util.h"
-#include "base/hash_tables.h"
-#include "base/logging.h"
-#include "base/mac/scoped_nsautorelease_pool.h"
-#include "base/memory/linked_ptr.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/process_util.h"
-#include "base/scoped_temp_dir.h"
-#include "base/string_number_conversions.h"
-#include "base/string_util.h"
-#include "base/test/test_suite.h"
-#include "base/test/test_timeouts.h"
-#include "base/time.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/test/base/chrome_test_suite.h"
-#include "chrome/test/base/in_process_browser_test.h"
-#include "chrome/test/base/test_launcher_utils.h"
-#include "net/base/escape.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#if defined(OS_WIN)
-#include "base/base_switches.h"
-#include "chrome/common/chrome_constants.h"
-#include "content/common/sandbox_policy.h"
-#include "sandbox/src/dep.h"
-#include "sandbox/src/sandbox_factory.h"
-#include "sandbox/src/sandbox_types.h"
-#endif  // defined(OS_WIN)
-
-#if defined(OS_MACOSX)
-#include "chrome/browser/chrome_browser_application_mac.h"
-#endif  // defined(OS_MACOSX)
-
-#if defined(OS_WIN)
-// The entry point signature of chrome.dll.
-typedef int (*DLL_MAIN)(HINSTANCE, sandbox::SandboxInterfaceInfo*, wchar_t*);
-#endif  // defined(OS_WIN)
-
-namespace {
-
-const char kGTestFilterFlag[] = "gtest_filter";
-const char kGTestHelpFlag[]   = "gtest_help";
-const char kGTestListTestsFlag[] = "gtest_list_tests";
-const char kGTestRepeatFlag[] = "gtest_repeat";
-const char kGTestRunDisabledTestsFlag[] = "gtest_also_run_disabled_tests";
-const char kGTestOutputFlag[] = "gtest_output";
-
-const char kSingleProcessTestsFlag[]   = "single_process";
-const char kSingleProcessTestsAndChromeFlag[]   = "single-process";
-// The following is kept for historical reasons (so people that are used to
-// using it don't get surprised).
-const char kChildProcessFlag[]   = "child";
-
-const char kHelpFlag[]   = "help";
-
-// The environment variable name for the total number of test shards.
-static const char kTestTotalShards[] = "GTEST_TOTAL_SHARDS";
-// The environment variable name for the test shard index.
-static const char kTestShardIndex[] = "GTEST_SHARD_INDEX";
-
-// The default output file for XML output.
-static const FilePath::CharType kDefaultOutputFile[] = FILE_PATH_LITERAL(
-    "test_detail.xml");
-
-// Name of the empty test below.
-static const char kEmptyTestName[] = "InProcessBrowserTest.Empty";
-
-// An empty test (it starts up and shuts down the browser as part of its
-// setup and teardown) used to prefetch all of the browser code into memory.
-IN_PROC_BROWSER_TEST_F(InProcessBrowserTest, Empty) {
-}
-
-// Parses the environment variable var as an Int32.  If it is unset, returns
-// default_val.  If it is set, unsets it then converts it to Int32 before
-// returning it.  If unsetting or converting to an Int32 fails, print an
-// error and exit with failure.
-int32 Int32FromEnvOrDie(const char* const var, int32 default_val) {
-  scoped_ptr<base::Environment> env(base::Environment::Create());
-  std::string str_val;
-  int32 result;
-  if (!env->GetVar(var, &str_val))
-    return default_val;
-  if (!env->UnSetVar(var)) {
-    LOG(ERROR) << "Invalid environment: we could not unset " << var << ".\n";
-    exit(EXIT_FAILURE);
-  }
-  if (!base::StringToInt(str_val, &result)) {
-    LOG(ERROR) << "Invalid environment: " << var << " is not an integer.\n";
-    exit(EXIT_FAILURE);
-  }
-  return result;
-}
-
-// Checks whether sharding is enabled by examining the relevant
-// environment variable values.  If the variables are present,
-// but inconsistent (i.e., shard_index >= total_shards), prints
-// an error and exits.
-bool ShouldShard(int32* total_shards, int32* shard_index) {
-  *total_shards = Int32FromEnvOrDie(kTestTotalShards, -1);
-  *shard_index = Int32FromEnvOrDie(kTestShardIndex, -1);
-
-  if (*total_shards == -1 && *shard_index == -1) {
-    return false;
-  } else if (*total_shards == -1 && *shard_index != -1) {
-    LOG(ERROR) << "Invalid environment variables: you have "
-               << kTestShardIndex << " = " << *shard_index
-               << ", but have left " << kTestTotalShards << " unset.\n";
-    exit(EXIT_FAILURE);
-  } else if (*total_shards != -1 && *shard_index == -1) {
-    LOG(ERROR) << "Invalid environment variables: you have "
-               << kTestTotalShards << " = " << *total_shards
-               << ", but have left " << kTestShardIndex << " unset.\n";
-    exit(EXIT_FAILURE);
-  } else if (*shard_index < 0 || *shard_index >= *total_shards) {
-    LOG(ERROR) << "Invalid environment variables: we require 0 <= "
-               << kTestShardIndex << " < " << kTestTotalShards
-               << ", but you have " << kTestShardIndex << "=" << *shard_index
-               << ", " << kTestTotalShards << "=" << *total_shards << ".\n";
-    exit(EXIT_FAILURE);
-  }
-
-  return *total_shards > 1;
-}
-
-// Given the total number of shards, the shard index, and the test id, returns
-// true iff the test should be run on this shard.  The test id is some arbitrary
-// but unique non-negative integer assigned by this launcher to each test
-// method.  Assumes that 0 <= shard_index < total_shards, which is first
-// verified in ShouldShard().
-bool ShouldRunTestOnShard(int total_shards, int shard_index, int test_id) {
-  return (test_id % total_shards) == shard_index;
-}
-
-// A helper class to output results.
-// Note: as currently XML is the only supported format by gtest, we don't
-// check output format (e.g. "xml:" prefix) here and output an XML file
-// unconditionally.
-// Note: we don't output per-test-case or total summary info like
-// total failed_test_count, disabled_test_count, elapsed_time and so on.
-// Only each test (testcase element in the XML) will have the correct
-// failed/disabled/elapsed_time information. Each test won't include
-// detailed failure messages either.
-class ResultsPrinter {
- public:
-  explicit ResultsPrinter(const CommandLine& command_line);
-  ~ResultsPrinter();
-  void OnTestCaseStart(const char* name, int test_count) const;
-  void OnTestCaseEnd() const;
-
-  void OnTestEnd(const char* name, const char* case_name, bool run,
-                 bool failed, bool failure_ignored, double elapsed_time) const;
- private:
-  FILE* out_;
-
-  DISALLOW_COPY_AND_ASSIGN(ResultsPrinter);
-};
-
-ResultsPrinter::ResultsPrinter(const CommandLine& command_line) : out_(NULL) {
-  if (!command_line.HasSwitch(kGTestOutputFlag))
-    return;
-  std::string flag = command_line.GetSwitchValueASCII(kGTestOutputFlag);
-  size_t colon_pos = flag.find(':');
-  FilePath path;
-  if (colon_pos != std::string::npos) {
-    FilePath flag_path = command_line.GetSwitchValuePath(kGTestOutputFlag);
-    FilePath::StringType path_string = flag_path.value();
-    path = FilePath(path_string.substr(colon_pos + 1));
-    // If the given path ends with '/', consider it is a directory.
-    // Note: This does NOT check that a directory (or file) actually exists
-    // (the behavior is same as what gtest does).
-    if (file_util::EndsWithSeparator(path)) {
-      FilePath executable = command_line.GetProgram().BaseName();
-      path = path.Append(executable.ReplaceExtension(
-          FilePath::StringType(FILE_PATH_LITERAL("xml"))));
-    }
-  }
-  if (path.value().empty())
-    path = FilePath(kDefaultOutputFile);
-  FilePath dir_name = path.DirName();
-  if (!file_util::DirectoryExists(dir_name)) {
-    LOG(WARNING) << "The output directory does not exist. "
-                 << "Creating the directory: " << dir_name.value();
-    // Create the directory if necessary (because the gtest does the same).
-    file_util::CreateDirectory(dir_name);
-  }
-  out_ = file_util::OpenFile(path, "w");
-  if (!out_) {
-    LOG(ERROR) << "Cannot open output file: "
-               << path.value() << ".";
-    return;
-  }
-  fprintf(out_, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
-  fprintf(out_, "<testsuites name=\"AllTests\" tests=\"\" failures=\"\""
-          " disabled=\"\" errors=\"\" time=\"\">\n");
-}
-
-ResultsPrinter::~ResultsPrinter() {
-  if (!out_)
-    return;
-  fprintf(out_, "</testsuites>\n");
-  fclose(out_);
-}
-
-void ResultsPrinter::OnTestCaseStart(const char* name, int test_count) const {
-  if (!out_)
-    return;
-  fprintf(out_, "  <testsuite name=\"%s\" tests=\"%d\" failures=\"\""
-          " disabled=\"\" errors=\"\" time=\"\">\n", name, test_count);
-}
-
-void ResultsPrinter::OnTestCaseEnd() const {
-  if (!out_)
-    return;
-  fprintf(out_, "  </testsuite>\n");
-}
-
-void ResultsPrinter::OnTestEnd(const char* name,
-                               const char* case_name,
-                               bool run,
-                               bool failed,
-                               bool failure_ignored,
-                               double elapsed_time) const {
-  if (!out_)
-    return;
-  fprintf(out_, "    <testcase name=\"%s\" status=\"%s\" time=\"%.3f\""
-          " classname=\"%s\"",
-          name, run ? "run" : "notrun", elapsed_time / 1000.0, case_name);
-  if (!failed) {
-    fprintf(out_, " />\n");
-    return;
-  }
-  fprintf(out_, ">\n");
-  fprintf(out_, "      <failure message=\"\" type=\"\"%s></failure>\n",
-          failure_ignored ? " ignored=\"true\"" : "");
-  fprintf(out_, "    </testcase>\n");
-}
-
-class TestCasePrinterHelper {
- public:
-  TestCasePrinterHelper(const ResultsPrinter& printer,
-                        const char* name,
-                        int total_test_count)
-      : printer_(printer) {
-    printer_.OnTestCaseStart(name, total_test_count);
-  }
-  ~TestCasePrinterHelper() {
-    printer_.OnTestCaseEnd();
-  }
- private:
-  const ResultsPrinter& printer_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestCasePrinterHelper);
-};
-
-// For a basic pattern matching for gtest_filter options.  (Copied from
-// gtest.cc, see the comment below and http://crbug.com/44497)
-bool PatternMatchesString(const char* pattern, const char* str) {
-  switch (*pattern) {
-    case '\0':
-    case ':':  // Either ':' or '\0' marks the end of the pattern.
-      return *str == '\0';
-    case '?':  // Matches any single character.
-      return *str != '\0' && PatternMatchesString(pattern + 1, str + 1);
-    case '*':  // Matches any string (possibly empty) of characters.
-      return (*str != '\0' && PatternMatchesString(pattern, str + 1)) ||
-          PatternMatchesString(pattern + 1, str);
-    default:  // Non-special character.  Matches itself.
-      return *pattern == *str &&
-          PatternMatchesString(pattern + 1, str + 1);
-  }
-}
-
-// TODO(phajdan.jr): Avoid duplicating gtest code. (http://crbug.com/44497)
-// For basic pattern matching for gtest_filter options.  (Copied from
-// gtest.cc)
-bool MatchesFilter(const std::string& name, const std::string& filter) {
-  const char *cur_pattern = filter.c_str();
-  for (;;) {
-    if (PatternMatchesString(cur_pattern, name.c_str())) {
-      return true;
-    }
-
-    // Finds the next pattern in the filter.
-    cur_pattern = strchr(cur_pattern, ':');
-
-    // Returns if no more pattern can be found.
-    if (cur_pattern == NULL) {
-      return false;
-    }
-
-    // Skips the pattern separater (the ':' character).
-    cur_pattern++;
-  }
-}
-
-// Runs test specified by |test_name| in a child process,
-// and returns the exit code.
-int RunTest(const std::string& test_name, int default_timeout_ms) {
-  // Some of the below method calls will leak objects if there is no
-  // autorelease pool in place.
-  base::mac::ScopedNSAutoreleasePool pool;
-
-  const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
-  CommandLine new_cmd_line(cmd_line->GetProgram());
-  CommandLine::SwitchMap switches = cmd_line->GetSwitches();
-
-  // Strip out gtest_output flag because otherwise we would overwrite results
-  // of the previous test. We will generate the final output file later
-  // in RunTests().
-  switches.erase(kGTestOutputFlag);
-
-  // Strip out gtest_repeat flag because we can only run one test in the child
-  // process (restarting the browser in the same process is illegal after it
-  // has been shut down and will actually crash).
-  switches.erase(kGTestRepeatFlag);
-
-  // Strip out user-data-dir if present.  We will add it back in again later.
-  switches.erase(switches::kUserDataDir);
-
-  for (CommandLine::SwitchMap::const_iterator iter = switches.begin();
-       iter != switches.end(); ++iter) {
-    new_cmd_line.AppendSwitchNative((*iter).first, (*iter).second);
-  }
-
-  // Always enable disabled tests.  This method is not called with disabled
-  // tests unless this flag was specified to the browser test executable.
-  new_cmd_line.AppendSwitch("gtest_also_run_disabled_tests");
-  new_cmd_line.AppendSwitchASCII("gtest_filter", test_name);
-  new_cmd_line.AppendSwitch(kChildProcessFlag);
-
-  // Do not let the child ignore failures.  We need to propagate the
-  // failure status back to the parent.
-  new_cmd_line.AppendSwitch(base::TestSuite::kStrictFailureHandling);
-
-  // Create a new user data dir and pass it to the child.
-  ScopedTempDir temp_dir;
-  if (!temp_dir.CreateUniqueTempDir() || !temp_dir.IsValid()) {
-    LOG(ERROR) << "Error creating temp profile directory";
-    return false;
-  }
-  new_cmd_line.AppendSwitchPath(switches::kUserDataDir, temp_dir.path());
-
-  // file:// access for ChromeOS.
-  new_cmd_line.AppendSwitch(switches::kAllowFileAccess);
-
-  const char* browser_wrapper = getenv("BROWSER_WRAPPER");
-  if (browser_wrapper) {
-#if defined(OS_WIN)
-    new_cmd_line.PrependWrapper(ASCIIToWide(browser_wrapper));
-#elif defined(OS_POSIX)
-    new_cmd_line.PrependWrapper(browser_wrapper);
-#endif
-    VLOG(1) << "BROWSER_WRAPPER was set, prefixing command_line with "
-            << browser_wrapper;
-  }
-
-  base::ProcessHandle process_handle;
-  base::LaunchOptions options;
-
-#if defined(OS_POSIX)
-  // On POSIX, we launch the test in a new process group with pgid equal to
-  // its pid. Any child processes that the test may create will inherit the
-  // same pgid. This way, if the test is abruptly terminated, we can clean up
-  // any orphaned child processes it may have left behind.
-  options.new_process_group = true;
-#endif
-
-  if (!base::LaunchProcess(new_cmd_line, options, &process_handle))
-    return false;
-
-  int timeout_ms =
-      test_launcher_utils::GetTestTerminationTimeout(test_name,
-                                                     default_timeout_ms);
-
-  int exit_code = 0;
-  if (!base::WaitForExitCodeWithTimeout(process_handle, &exit_code,
-                                        timeout_ms)) {
-    LOG(ERROR) << "Test timeout (" << timeout_ms
-               << " ms) exceeded for " << test_name;
-
-    exit_code = -1;  // Set a non-zero exit code to signal a failure.
-
-    // Ensure that the process terminates.
-    base::KillProcess(process_handle, -1, true);
-  }
-
-#if defined(OS_POSIX)
-  if (exit_code != 0) {
-    // On POSIX, in case the test does not exit cleanly, either due to a crash
-    // or due to it timing out, we need to clean up any child processes that
-    // it might have created. On Windows, child processes are automatically
-    // cleaned up using JobObjects.
-    base::KillProcessGroup(process_handle);
-  }
-#endif
-
-  base::CloseProcessHandle(process_handle);
-
-  return exit_code;
-}
-
-bool RunTests(bool should_shard, int total_shards, int shard_index) {
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
-
-  DCHECK(!command_line->HasSwitch(kGTestListTestsFlag));
-
-  testing::UnitTest* const unit_test = testing::UnitTest::GetInstance();
-
-  std::string filter = command_line->GetSwitchValueASCII(kGTestFilterFlag);
-
-  // Split --gtest_filter at '-', if there is one, to separate into
-  // positive filter and negative filter portions.
-  std::string positive_filter = filter;
-  std::string negative_filter = "";
-  size_t dash_pos = filter.find('-');
-  if (dash_pos != std::string::npos) {
-    positive_filter = filter.substr(0, dash_pos);  // Everything up to the dash.
-    negative_filter = filter.substr(dash_pos + 1); // Everything after the dash.
-  }
-
-  int num_runnable_tests = 0;
-  int test_run_count = 0;
-  int ignored_failure_count = 0;
-  std::vector<std::string> failed_tests;
-
-  ResultsPrinter printer(*command_line);
-  for (int i = 0; i < unit_test->total_test_case_count(); ++i) {
-    const testing::TestCase* test_case = unit_test->GetTestCase(i);
-    TestCasePrinterHelper helper(printer, test_case->name(),
-                                 test_case->total_test_count());
-    for (int j = 0; j < test_case->total_test_count(); ++j) {
-      const testing::TestInfo* test_info = test_case->GetTestInfo(j);
-      std::string test_name = test_info->test_case_name();
-      test_name.append(".");
-      test_name.append(test_info->name());
-
-      // Skip our special test so it's not run twice. That confuses
-      // the log parser.
-      if (test_name == kEmptyTestName)
-        continue;
-
-      // Skip disabled tests.
-      if (test_name.find("DISABLED") != std::string::npos &&
-          !command_line->HasSwitch(kGTestRunDisabledTestsFlag)) {
-        printer.OnTestEnd(test_info->name(), test_case->name(),
-                          false, false, false, 0);
-        continue;
-      }
-
-      // Skip the test that doesn't match the filter string (if given).
-      if ((!positive_filter.empty() &&
-           !MatchesFilter(test_name, positive_filter)) ||
-          MatchesFilter(test_name, negative_filter)) {
-        printer.OnTestEnd(test_info->name(), test_case->name(),
-                          false, false, false, 0);
-        continue;
-      }
-
-      // Decide if this test should be run.
-      bool should_run = true;
-      if (should_shard) {
-        should_run = ShouldRunTestOnShard(total_shards, shard_index,
-                                          num_runnable_tests);
-      }
-      num_runnable_tests += 1;
-      // If sharding is enabled and the test should not be run, skip it.
-      if (!should_run) {
-        continue;
-      }
-
-      base::Time start_time = base::Time::Now();
-      ++test_run_count;
-      int exit_code = RunTest(test_name, TestTimeouts::action_max_timeout_ms());
-      if (exit_code == 0) {
-        // Test passed.
-        printer.OnTestEnd(test_info->name(), test_case->name(), true, false,
-                          false,
-                          (base::Time::Now() - start_time).InMillisecondsF());
-      } else {
-        failed_tests.push_back(test_name);
-
-        bool ignore_failure = false;
-
-        // -1 exit code means a crash or hang. Never ignore those failures,
-        // they are serious and should always be visible.
-        if (exit_code != -1)
-          ignore_failure = base::TestSuite::ShouldIgnoreFailure(*test_info);
-
-        printer.OnTestEnd(test_info->name(), test_case->name(), true, true,
-                          ignore_failure,
-                          (base::Time::Now() - start_time).InMillisecondsF());
-        if (ignore_failure)
-          ++ignored_failure_count;
-      }
-    }
-  }
-
-  printf("%d test%s run\n", test_run_count, test_run_count > 1 ? "s" : "");
-  printf("%d test%s failed (%d ignored)\n",
-         static_cast<int>(failed_tests.size()),
-         failed_tests.size() > 1 ? "s" : "", ignored_failure_count);
-  if (failed_tests.size() - ignored_failure_count == 0)
-    return true;
-
-  printf("Failing tests:\n");
-  for (std::vector<std::string>::const_iterator iter = failed_tests.begin();
-       iter != failed_tests.end(); ++iter) {
-    printf("%s\n", iter->c_str());
-  }
-
-  return false;
-}
-
-void PrintUsage() {
-  fprintf(stdout,
-      "Runs tests using the gtest framework, each test being run in its own\n"
-      "process.  Any gtest flags can be specified.\n"
-      "  --single_process\n"
-      "    Runs the tests and the launcher in the same process. Useful for \n"
-      "    debugging a specific test in a debugger.\n"
-      "  --single-process\n"
-      "    Same as above, and also runs Chrome in single-process mode.\n"
-      "  --help\n"
-      "    Shows this message.\n"
-      "  --gtest_help\n"
-      "    Shows the gtest help message.\n");
-}
-
-}  // namespace
-
-int main(int argc, char** argv) {
-#if defined(OS_MACOSX)
-  chrome_browser_application_mac::RegisterBrowserCrApp();
-#endif
-
-  CommandLine::Init(argc, argv);
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
-
-  if (command_line->HasSwitch(kHelpFlag)) {
-    PrintUsage();
-    return 0;
-  }
-
-  // TODO(pkasting): This "single_process vs. single-process" design is terrible
-  // UI.  Instead, there should be some sort of signal flag on the command line,
-  // with all subsequent arguments passed through to the underlying browser.
-  if (command_line->HasSwitch(kChildProcessFlag) ||
-      command_line->HasSwitch(kSingleProcessTestsFlag) ||
-      command_line->HasSwitch(kSingleProcessTestsAndChromeFlag) ||
-      command_line->HasSwitch(kGTestListTestsFlag) ||
-      command_line->HasSwitch(kGTestHelpFlag)) {
-
-#if defined(OS_WIN)
-    if (command_line->HasSwitch(kChildProcessFlag) ||
-        command_line->HasSwitch(kSingleProcessTestsFlag)) {
-      // This is the browser process, so setup the sandbox broker.
-      sandbox::BrokerServices* broker_services =
-          sandbox::SandboxFactory::GetBrokerServices();
-      if (broker_services) {
-        sandbox::InitBrokerServices(broker_services);
-        // Precreate the desktop and window station used by the renderers.
-        sandbox::TargetPolicy* policy = broker_services->CreatePolicy();
-        sandbox::ResultCode result = policy->CreateAlternateDesktop(true);
-        CHECK(sandbox::SBOX_ERROR_FAILED_TO_SWITCH_BACK_WINSTATION != result);
-        policy->Release();
-      }
-    }
-#endif
-    return ChromeTestSuite(argc, argv).Run();
-  }
-
-#if defined(OS_WIN)
-  if (command_line->HasSwitch(switches::kProcessType)) {
-    // This is a child process, call ChromeMain.
-    FilePath chrome_path(command_line->GetProgram().DirName());
-    chrome_path = chrome_path.Append(chrome::kBrowserResourcesDll);
-    HMODULE dll = LoadLibrary(chrome_path.value().c_str());
-    DLL_MAIN entry_point =
-        reinterpret_cast<DLL_MAIN>(::GetProcAddress(dll, "ChromeMain"));
-    if (!entry_point)
-      return -1;
-
-    // Initialize the sandbox services.
-    sandbox::SandboxInterfaceInfo sandbox_info = {0};
-    sandbox_info.target_services = sandbox::SandboxFactory::GetTargetServices();
-    return entry_point(GetModuleHandle(NULL), &sandbox_info, GetCommandLineW());
-  }
-#endif
-
-  int32 total_shards;
-  int32 shard_index;
-  bool should_shard = ShouldShard(&total_shards, &shard_index);
-
-  fprintf(stdout,
-      "Starting tests...\n"
-      "IMPORTANT DEBUGGING NOTE: each test is run inside its own process.\n"
-      "For debugging a test inside a debugger, use the\n"
-      "--gtest_filter=<your_test_name> flag along with either\n"
-      "--single_process (to run all tests in one launcher/browser process) or\n"
-      "--single-process (to do the above, and also run Chrome in single-\n"
-      "process mode).\n");
-
-  testing::InitGoogleTest(&argc, argv);
-  TestTimeouts::Initialize();
-
-  // Make sure the entire browser code is loaded into memory. Reading it
-  // from disk may be slow on a busy bot, and can easily exceed the default
-  // timeout causing flaky test failures. Use an empty test that only starts
-  // and closes a browser with a long timeout to avoid those problems.
-  RunTest(kEmptyTestName, TestTimeouts::large_test_timeout_ms());
-
-  int cycles = 1;
-  if (command_line->HasSwitch(kGTestRepeatFlag)) {
-    base::StringToInt(command_line->GetSwitchValueASCII(kGTestRepeatFlag),
-                      &cycles);
-  }
-
-  int exit_code = 0;
-  while (cycles != 0) {
-    if (!RunTests(should_shard, total_shards, shard_index)) {
-      exit_code = 1;
-      break;
-    }
-
-    // Special value "-1" means "repeat indefinitely".
-    if (cycles != -1)
-      cycles--;
-  }
-  return exit_code;
-}