Move base to DEPS

base/logging.cc

Index: base/logging.cc
diff --git a/base/logging.cc b/base/logging.cc
deleted file mode 100644
index 1f0f6d422579f5b59379f4ff6ca93af7353ee3c0..0000000000000000000000000000000000000000
--- a/base/logging.cc
+++ /dev/null
@@ -1,821 +0,0 @@
-// Copyright (c) 2012 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/logging.h"
-
-#if defined(OS_WIN)
-#include <io.h>
-#include <windows.h>
-typedef HANDLE FileHandle;
-typedef HANDLE MutexHandle;
-// Windows warns on using write().  It prefers _write().
-#define write(fd, buf, count) _write(fd, buf, static_cast<unsigned int>(count))
-// Windows doesn't define STDERR_FILENO.  Define it here.
-#define STDERR_FILENO 2
-#elif defined(OS_MACOSX)
-#include <mach/mach.h>
-#include <mach/mach_time.h>
-#include <mach-o/dyld.h>
-#elif defined(OS_POSIX)
-#if defined(OS_NACL)
-#include <sys/time.h>  // timespec doesn't seem to be in <time.h>
-#else
-#include <sys/syscall.h>
-#endif
-#include <time.h>
-#endif
-
-#if defined(OS_POSIX)
-#include <errno.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#define MAX_PATH PATH_MAX
-typedef FILE* FileHandle;
-typedef pthread_mutex_t* MutexHandle;
-#endif
-
-#include <algorithm>
-#include <cstring>
-#include <ctime>
-#include <iomanip>
-#include <ostream>
-#include <string>
-
-#include "base/base_switches.h"
-#include "base/command_line.h"
-#include "base/debug/alias.h"
-#include "base/debug/debugger.h"
-#include "base/debug/stack_trace.h"
-#include "base/posix/eintr_wrapper.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/synchronization/lock_impl.h"
-#include "base/threading/platform_thread.h"
-#include "base/vlog.h"
-#if defined(OS_POSIX)
-#include "base/posix/safe_strerror.h"
-#endif
-
-#if defined(OS_ANDROID)
-#include <android/log.h>
-#endif
-
-namespace logging {
-
-namespace {
-
-VlogInfo* g_vlog_info = nullptr;
-VlogInfo* g_vlog_info_prev = nullptr;
-
-const char* const log_severity_names[LOG_NUM_SEVERITIES] = {
-  "INFO", "WARNING", "ERROR", "FATAL" };
-
-const char* log_severity_name(int severity) {
-  if (severity >= 0 && severity < LOG_NUM_SEVERITIES)
-    return log_severity_names[severity];
-  return "UNKNOWN";
-}
-
-int g_min_log_level = 0;
-
-LoggingDestination g_logging_destination = LOG_DEFAULT;
-
-// For LOG_ERROR and above, always print to stderr.
-const int kAlwaysPrintErrorLevel = LOG_ERROR;
-
-// Which log file to use? This is initialized by InitLogging or
-// will be lazily initialized to the default value when it is
-// first needed.
-#if defined(OS_WIN)
-typedef std::wstring PathString;
-#else
-typedef std::string PathString;
-#endif
-PathString* g_log_file_name = nullptr;
-
-// This file is lazily opened and the handle may be nullptr
-FileHandle g_log_file = nullptr;
-
-// What should be prepended to each message?
-bool g_log_process_id = false;
-bool g_log_thread_id = false;
-bool g_log_timestamp = true;
-bool g_log_tickcount = false;
-
-// Should we pop up fatal debug messages in a dialog?
-bool show_error_dialogs = false;
-
-// An assert handler override specified by the client to be called instead of
-// the debug message dialog and process termination.
-LogAssertHandlerFunction log_assert_handler = nullptr;
-// A log message handler that gets notified of every log message we process.
-LogMessageHandlerFunction log_message_handler = nullptr;
-
-// Helper functions to wrap platform differences.
-
-int32 CurrentProcessId() {
-#if defined(OS_WIN)
-  return GetCurrentProcessId();
-#elif defined(OS_POSIX)
-  return getpid();
-#endif
-}
-
-uint64 TickCount() {
-#if defined(OS_WIN)
-  return GetTickCount();
-#elif defined(OS_MACOSX)
-  return mach_absolute_time();
-#elif defined(OS_NACL)
-  // NaCl sadly does not have _POSIX_TIMERS enabled in sys/features.h
-  // So we have to use clock() for now.
-  return clock();
-#elif defined(OS_POSIX)
-  struct timespec ts;
-  clock_gettime(CLOCK_MONOTONIC, &ts);
-
-  uint64 absolute_micro =
-    static_cast<int64>(ts.tv_sec) * 1000000 +
-    static_cast<int64>(ts.tv_nsec) / 1000;
-
-  return absolute_micro;
-#endif
-}
-
-void DeleteFilePath(const PathString& log_name) {
-#if defined(OS_WIN)
-  DeleteFile(log_name.c_str());
-#elif defined(OS_NACL)
-  // Do nothing; unlink() isn't supported on NaCl.
-#else
-  unlink(log_name.c_str());
-#endif
-}
-
-PathString GetDefaultLogFile() {
-#if defined(OS_WIN)
-  // On Windows we use the same path as the exe.
-  wchar_t module_name[MAX_PATH];
-  GetModuleFileName(nullptr, module_name, MAX_PATH);
-
-  PathString log_name = module_name;
-  PathString::size_type last_backslash = log_name.rfind('\\', log_name.size());
-  if (last_backslash != PathString::npos)
-    log_name.erase(last_backslash + 1);
-  log_name += L"debug.log";
-  return log_name;
-#elif defined(OS_POSIX)
-  // On other platforms we just use the current directory.
-  return PathString("debug.log");
-#endif
-}
-
-// This class acts as a wrapper for locking the logging files.
-// LoggingLock::Init() should be called from the main thread before any logging
-// is done. Then whenever logging, be sure to have a local LoggingLock
-// instance on the stack. This will ensure that the lock is unlocked upon
-// exiting the frame.
-// LoggingLocks can not be nested.
-class LoggingLock {
- public:
-  LoggingLock() {
-    LockLogging();
-  }
-
-  ~LoggingLock() {
-    UnlockLogging();
-  }
-
-  static void Init(LogLockingState lock_log, const PathChar* new_log_file) {
-    if (initialized)
-      return;
-    lock_log_file = lock_log;
-    if (lock_log_file == LOCK_LOG_FILE) {
-#if defined(OS_WIN)
-      if (!log_mutex) {
-        std::wstring safe_name;
-        if (new_log_file)
-          safe_name = new_log_file;
-        else
-          safe_name = GetDefaultLogFile();
-        // \ is not a legal character in mutex names so we replace \ with /
-        std::replace(safe_name.begin(), safe_name.end(), '\\', '/');
-        std::wstring t(L"Global\\");
-        t.append(safe_name);
-        log_mutex = ::CreateMutex(nullptr, FALSE, t.c_str());
-
-        if (log_mutex == nullptr) {
-#if DEBUG
-          // Keep the error code for debugging
-          int error = GetLastError();  // NOLINT
-          base::debug::BreakDebugger();
-#endif
-          // Return nicely without putting initialized to true.
-          return;
-        }
-      }
-#endif
-    } else {
-      log_lock = new base::internal::LockImpl();
-    }
-    initialized = true;
-  }
-
- private:
-  static void LockLogging() {
-    if (lock_log_file == LOCK_LOG_FILE) {
-#if defined(OS_WIN)
-      ::WaitForSingleObject(log_mutex, INFINITE);
-      // WaitForSingleObject could have returned WAIT_ABANDONED. We don't
-      // abort the process here. UI tests might be crashy sometimes,
-      // and aborting the test binary only makes the problem worse.
-      // We also don't use LOG macros because that might lead to an infinite
-      // loop. For more info see http://crbug.com/18028.
-#elif defined(OS_POSIX)
-      pthread_mutex_lock(&log_mutex);
-#endif
-    } else {
-      // use the lock
-      log_lock->Lock();
-    }
-  }
-
-  static void UnlockLogging() {
-    if (lock_log_file == LOCK_LOG_FILE) {
-#if defined(OS_WIN)
-      ReleaseMutex(log_mutex);
-#elif defined(OS_POSIX)
-      pthread_mutex_unlock(&log_mutex);
-#endif
-    } else {
-      log_lock->Unlock();
-    }
-  }
-
-  // The lock is used if log file locking is false. It helps us avoid problems
-  // with multiple threads writing to the log file at the same time.  Use
-  // LockImpl directly instead of using Lock, because Lock makes logging calls.
-  static base::internal::LockImpl* log_lock;
-
-  // When we don't use a lock, we are using a global mutex. We need to do this
-  // because LockFileEx is not thread safe.
-#if defined(OS_WIN)
-  static MutexHandle log_mutex;
-#elif defined(OS_POSIX)
-  static pthread_mutex_t log_mutex;
-#endif
-
-  static bool initialized;
-  static LogLockingState lock_log_file;
-};
-
-// static
-bool LoggingLock::initialized = false;
-// static
-base::internal::LockImpl* LoggingLock::log_lock = nullptr;
-// static
-LogLockingState LoggingLock::lock_log_file = LOCK_LOG_FILE;
-
-#if defined(OS_WIN)
-// static
-MutexHandle LoggingLock::log_mutex = nullptr;
-#elif defined(OS_POSIX)
-pthread_mutex_t LoggingLock::log_mutex = PTHREAD_MUTEX_INITIALIZER;
-#endif
-
-// Called by logging functions to ensure that |g_log_file| is initialized
-// and can be used for writing. Returns false if the file could not be
-// initialized. |g_log_file| will be nullptr in this case.
-bool InitializeLogFileHandle() {
-  if (g_log_file)
-    return true;
-
-  if (!g_log_file_name) {
-    // Nobody has called InitLogging to specify a debug log file, so here we
-    // initialize the log file name to a default.
-    g_log_file_name = new PathString(GetDefaultLogFile());
-  }
-
-  if ((g_logging_destination & LOG_TO_FILE) != 0) {
-#if defined(OS_WIN)
-    g_log_file = CreateFile(g_log_file_name->c_str(), GENERIC_WRITE,
-                            FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr,
-                            OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
-    if (g_log_file == INVALID_HANDLE_VALUE || g_log_file == nullptr) {
-      // try the current directory
-      g_log_file = CreateFile(L".\\debug.log", GENERIC_WRITE,
-                              FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr,
-                              OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
-      if (g_log_file == INVALID_HANDLE_VALUE || g_log_file == nullptr) {
-        g_log_file = nullptr;
-        return false;
-      }
-    }
-    SetFilePointer(g_log_file, 0, 0, FILE_END);
-#elif defined(OS_POSIX)
-    g_log_file = fopen(g_log_file_name->c_str(), "a");
-    if (g_log_file == nullptr)
-      return false;
-#endif
-  }
-
-  return true;
-}
-
-void CloseFile(FileHandle log) {
-#if defined(OS_WIN)
-  CloseHandle(log);
-#else
-  fclose(log);
-#endif
-}
-
-void CloseLogFileUnlocked() {
-  if (!g_log_file)
-    return;
-
-  CloseFile(g_log_file);
-  g_log_file = nullptr;
-}
-
-}  // namespace
-
-LoggingSettings::LoggingSettings()
-    : logging_dest(LOG_DEFAULT),
-      log_file(nullptr),
-      lock_log(LOCK_LOG_FILE),
-      delete_old(APPEND_TO_OLD_LOG_FILE) {}
-
-bool BaseInitLoggingImpl(const LoggingSettings& settings) {
-#if defined(OS_NACL)
-  // Can log only to the system debug log.
-  CHECK_EQ(settings.logging_dest & ~LOG_TO_SYSTEM_DEBUG_LOG, 0);
-#endif
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-  // Don't bother initializing |g_vlog_info| unless we use one of the
-  // vlog switches.
-  if (command_line->HasSwitch(switches::kV) ||
-      command_line->HasSwitch(switches::kVModule)) {
-    // NOTE: If |g_vlog_info| has already been initialized, it might be in use
-    // by another thread. Don't delete the old VLogInfo, just create a second
-    // one. We keep track of both to avoid memory leak warnings.
-    CHECK(!g_vlog_info_prev);
-    g_vlog_info_prev = g_vlog_info;
-
-    g_vlog_info =
-        new VlogInfo(command_line->GetSwitchValueASCII(switches::kV),
-                     command_line->GetSwitchValueASCII(switches::kVModule),
-                     &g_min_log_level);
-  }
-
-  g_logging_destination = settings.logging_dest;
-
-  // ignore file options unless logging to file is set.
-  if ((g_logging_destination & LOG_TO_FILE) == 0)
-    return true;
-
-  LoggingLock::Init(settings.lock_log, settings.log_file);
-  LoggingLock logging_lock;
-
-  // Calling InitLogging twice or after some log call has already opened the
-  // default log file will re-initialize to the new options.
-  CloseLogFileUnlocked();
-
-  if (!g_log_file_name)
-    g_log_file_name = new PathString();
-  *g_log_file_name = settings.log_file;
-  if (settings.delete_old == DELETE_OLD_LOG_FILE)
-    DeleteFilePath(*g_log_file_name);
-
-  return InitializeLogFileHandle();
-}
-
-void SetMinLogLevel(int level) {
-  g_min_log_level = std::min(LOG_FATAL, level);
-}
-
-int GetMinLogLevel() {
-  return g_min_log_level;
-}
-
-int GetVlogVerbosity() {
-  return std::max(-1, LOG_INFO - GetMinLogLevel());
-}
-
-int GetVlogLevelHelper(const char* file, size_t N) {
-  DCHECK_GT(N, 0U);
-  // Note: |g_vlog_info| may change on a different thread during startup
-  // (but will always be valid or nullptr).
-  VlogInfo* vlog_info = g_vlog_info;
-  return vlog_info ?
-      vlog_info->GetVlogLevel(base::StringPiece(file, N - 1)) :
-      GetVlogVerbosity();
-}
-
-void SetLogItems(bool enable_process_id, bool enable_thread_id,
-                 bool enable_timestamp, bool enable_tickcount) {
-  g_log_process_id = enable_process_id;
-  g_log_thread_id = enable_thread_id;
-  g_log_timestamp = enable_timestamp;
-  g_log_tickcount = enable_tickcount;
-}
-
-void SetShowErrorDialogs(bool enable_dialogs) {
-  show_error_dialogs = enable_dialogs;
-}
-
-void SetLogAssertHandler(LogAssertHandlerFunction handler) {
-  log_assert_handler = handler;
-}
-
-void SetLogMessageHandler(LogMessageHandlerFunction handler) {
-  log_message_handler = handler;
-}
-
-LogMessageHandlerFunction GetLogMessageHandler() {
-  return log_message_handler;
-}
-
-// Explicit instantiations for commonly used comparisons.
-template std::string* MakeCheckOpString<int, int>(
-    const int&, const int&, const char* names);
-template std::string* MakeCheckOpString<unsigned long, unsigned long>(
-    const unsigned long&, const unsigned long&, const char* names);
-template std::string* MakeCheckOpString<unsigned long, unsigned int>(
-    const unsigned long&, const unsigned int&, const char* names);
-template std::string* MakeCheckOpString<unsigned int, unsigned long>(
-    const unsigned int&, const unsigned long&, const char* names);
-template std::string* MakeCheckOpString<std::string, std::string>(
-    const std::string&, const std::string&, const char* name);
-
-#if !defined(NDEBUG)
-// Displays a message box to the user with the error message in it.
-// Used for fatal messages, where we close the app simultaneously.
-// This is for developers only; we don't use this in circumstances
-// (like release builds) where users could see it, since users don't
-// understand these messages anyway.
-void DisplayDebugMessageInDialog(const std::string& str) {
-  if (str.empty())
-    return;
-
-  if (!show_error_dialogs)
-    return;
-
-#if defined(OS_WIN)
-  // For Windows programs, it's possible that the message loop is
-  // messed up on a fatal error, and creating a MessageBox will cause
-  // that message loop to be run. Instead, we try to spawn another
-  // process that displays its command line. We look for "Debug
-  // Message.exe" in the same directory as the application. If it
-  // exists, we use it, otherwise, we use a regular message box.
-  wchar_t prog_name[MAX_PATH];
-  GetModuleFileNameW(nullptr, prog_name, MAX_PATH);
-  wchar_t* backslash = wcsrchr(prog_name, '\\');
-  if (backslash)
-    backslash[1] = 0;
-  wcscat_s(prog_name, MAX_PATH, L"debug_message.exe");
-
-  std::wstring cmdline = base::UTF8ToWide(str);
-  if (cmdline.empty())
-    return;
-
-  STARTUPINFO startup_info;
-  memset(&startup_info, 0, sizeof(startup_info));
-  startup_info.cb = sizeof(startup_info);
-
-  PROCESS_INFORMATION process_info;
-  if (CreateProcessW(prog_name, &cmdline[0], nullptr, nullptr, false, 0,
-                     nullptr, nullptr, &startup_info, &process_info)) {
-    WaitForSingleObject(process_info.hProcess, INFINITE);
-    CloseHandle(process_info.hThread);
-    CloseHandle(process_info.hProcess);
-  } else {
-    // debug process broken, let's just do a message box
-    MessageBoxW(nullptr, &cmdline[0], L"Fatal error",
-                MB_OK | MB_ICONHAND | MB_TOPMOST);
-  }
-#else
-  // We intentionally don't implement a dialog on other platforms.
-  // You can just look at stderr.
-#endif  // defined(OS_WIN)
-}
-#endif  // !defined(NDEBUG)
-
-#if defined(OS_WIN)
-LogMessage::SaveLastError::SaveLastError() : last_error_(::GetLastError()) {
-}
-
-LogMessage::SaveLastError::~SaveLastError() {
-  ::SetLastError(last_error_);
-}
-#endif  // defined(OS_WIN)
-
-LogMessage::LogMessage(const char* file, int line, LogSeverity severity)
-    : severity_(severity), file_(file), line_(line) {
-  Init(file, line);
-}
-
-LogMessage::LogMessage(const char* file, int line, const char* condition)
-    : severity_(LOG_FATAL), file_(file), line_(line) {
-  Init(file, line);
-  stream_ << "Check failed: " << condition << ". ";
-}
-
-LogMessage::LogMessage(const char* file, int line, std::string* result)
-    : severity_(LOG_FATAL), file_(file), line_(line) {
-  Init(file, line);
-  stream_ << "Check failed: " << *result;
-  delete result;
-}
-
-LogMessage::LogMessage(const char* file, int line, LogSeverity severity,
-                       std::string* result)
-    : severity_(severity), file_(file), line_(line) {
-  Init(file, line);
-  stream_ << "Check failed: " << *result;
-  delete result;
-}
-
-LogMessage::~LogMessage() {
-#if !defined(NDEBUG) && !defined(OS_NACL) && !defined(__UCLIBC__) && !defined(FNL_MUSL)
-  if (severity_ == LOG_FATAL) {
-    // Include a stack trace on a fatal.
-    base::debug::StackTrace trace;
-    stream_ << std::endl;  // Newline to separate from log message.
-    trace.OutputToStream(&stream_);
-  }
-#endif
-  stream_ << std::endl;
-  std::string str_newline(stream_.str());
-
-  // Give any log message handler first dibs on the message.
-  if (log_message_handler &&
-      log_message_handler(severity_, file_, line_,
-                          message_start_, str_newline)) {
-    // The handler took care of it, no further processing.
-    return;
-  }
-
-  if ((g_logging_destination & LOG_TO_SYSTEM_DEBUG_LOG) != 0) {
-#if defined(OS_WIN)
-    OutputDebugStringA(str_newline.c_str());
-#elif defined(OS_ANDROID)
-    android_LogPriority priority =
-        (severity_ < 0) ? ANDROID_LOG_VERBOSE : ANDROID_LOG_UNKNOWN;
-    switch (severity_) {
-      case LOG_INFO:
-        priority = ANDROID_LOG_INFO;
-        break;
-      case LOG_WARNING:
-        priority = ANDROID_LOG_WARN;
-        break;
-      case LOG_ERROR:
-        priority = ANDROID_LOG_ERROR;
-        break;
-      case LOG_FATAL:
-        priority = ANDROID_LOG_FATAL;
-        break;
-    }
-    __android_log_write(priority, ANDROID_LOG_TAG, str_newline.c_str());
-#endif
-    ignore_result(fwrite(str_newline.data(), str_newline.size(), 1, stderr));
-    fflush(stderr);
-  } else if (severity_ >= kAlwaysPrintErrorLevel) {
-    // When we're only outputting to a log file, above a certain log level, we
-    // should still output to stderr so that we can better detect and diagnose
-    // problems with unit tests, especially on the buildbots.
-    ignore_result(fwrite(str_newline.data(), str_newline.size(), 1, stderr));
-    fflush(stderr);
-  }
-
-  // write to log file
-  if ((g_logging_destination & LOG_TO_FILE) != 0) {
-    // We can have multiple threads and/or processes, so try to prevent them
-    // from clobbering each other's writes.
-    // If the client app did not call InitLogging, and the lock has not
-    // been created do it now. We do this on demand, but if two threads try
-    // to do this at the same time, there will be a race condition to create
-    // the lock. This is why InitLogging should be called from the main
-    // thread at the beginning of execution.
-    LoggingLock::Init(LOCK_LOG_FILE, nullptr);
-    LoggingLock logging_lock;
-    if (InitializeLogFileHandle()) {
-#if defined(OS_WIN)
-      SetFilePointer(g_log_file, 0, 0, SEEK_END);
-      DWORD num_written;
-      WriteFile(g_log_file,
-                static_cast<const void*>(str_newline.c_str()),
-                static_cast<DWORD>(str_newline.length()),
-                &num_written,
-                nullptr);
-#else
-      ignore_result(fwrite(
-          str_newline.data(), str_newline.size(), 1, g_log_file));
-      fflush(g_log_file);
-#endif
-    }
-  }
-
-  if (severity_ == LOG_FATAL) {
-    // Ensure the first characters of the string are on the stack so they
-    // are contained in minidumps for diagnostic purposes.
-    char str_stack[1024];
-    str_newline.copy(str_stack, arraysize(str_stack));
-    base::debug::Alias(str_stack);
-
-    if (log_assert_handler) {
-      // Make a copy of the string for the handler out of paranoia.
-      log_assert_handler(std::string(stream_.str()));
-    } else {
-      // Don't use the string with the newline, get a fresh version to send to
-      // the debug message process. We also don't display assertions to the
-      // user in release mode. The enduser can't do anything with this
-      // information, and displaying message boxes when the application is
-      // hosed can cause additional problems.
-#ifndef NDEBUG
-      DisplayDebugMessageInDialog(stream_.str());
-#endif
-      // Crash the process to generate a dump.
-      base::debug::BreakDebugger();
-    }
-  }
-}
-
-// writes the common header info to the stream
-void LogMessage::Init(const char* file, int line) {
-  base::StringPiece filename(file);
-  size_t last_slash_pos = filename.find_last_of("\\/");
-  if (last_slash_pos != base::StringPiece::npos)
-    filename.remove_prefix(last_slash_pos + 1);
-
-  // TODO(darin): It might be nice if the columns were fixed width.
-
-  stream_ <<  '[';
-  if (g_log_process_id)
-    stream_ << CurrentProcessId() << ':';
-  if (g_log_thread_id)
-    stream_ << base::PlatformThread::CurrentId() << ':';
-  if (g_log_timestamp) {
-    time_t t = time(nullptr);
-    struct tm local_time = {0};
-#ifdef _MSC_VER
-    localtime_s(&local_time, &t);
-#else
-    localtime_r(&t, &local_time);
-#endif
-    struct tm* tm_time = &local_time;
-    stream_ << std::setfill('0')
-            << std::setw(2) << 1 + tm_time->tm_mon
-            << std::setw(2) << tm_time->tm_mday
-            << '/'
-            << std::setw(2) << tm_time->tm_hour
-            << std::setw(2) << tm_time->tm_min
-            << std::setw(2) << tm_time->tm_sec
-            << ':';
-  }
-  if (g_log_tickcount)
-    stream_ << TickCount() << ':';
-  if (severity_ >= 0)
-    stream_ << log_severity_name(severity_);
-  else
-    stream_ << "VERBOSE" << -severity_;
-
-  stream_ << ":" << filename << "(" << line << ")] ";
-
-  message_start_ = stream_.str().length();
-}
-
-#if defined(OS_WIN)
-// This has already been defined in the header, but defining it again as DWORD
-// ensures that the type used in the header is equivalent to DWORD. If not,
-// the redefinition is a compile error.
-typedef DWORD SystemErrorCode;
-#endif
-
-SystemErrorCode GetLastSystemErrorCode() {
-#if defined(OS_WIN)
-  return ::GetLastError();
-#elif defined(OS_POSIX)
-  return errno;
-#else
-#error Not implemented
-#endif
-}
-
-#if defined(OS_WIN)
-BASE_EXPORT std::string SystemErrorCodeToString(SystemErrorCode error_code) {
-  const int kErrorMessageBufferSize = 256;
-  char msgbuf[kErrorMessageBufferSize];
-  DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
-  DWORD len = FormatMessageA(flags, nullptr, error_code, 0, msgbuf,
-                             arraysize(msgbuf), nullptr);
-  if (len) {
-    // Messages returned by system end with line breaks.
-    return base::CollapseWhitespaceASCII(msgbuf, true) +
-        base::StringPrintf(" (0x%X)", error_code);
-  }
-  return base::StringPrintf("Error (0x%X) while retrieving error. (0x%X)",
-                            GetLastError(), error_code);
-}
-#elif defined(OS_POSIX)
-BASE_EXPORT std::string SystemErrorCodeToString(SystemErrorCode error_code) {
-  return base::safe_strerror(error_code);
-}
-#else
-#error Not implemented
-#endif  // defined(OS_WIN)
-
-
-#if defined(OS_WIN)
-Win32ErrorLogMessage::Win32ErrorLogMessage(const char* file,
-                                           int line,
-                                           LogSeverity severity,
-                                           SystemErrorCode err)
-    : err_(err),
-      log_message_(file, line, severity) {
-}
-
-Win32ErrorLogMessage::~Win32ErrorLogMessage() {
-  stream() << ": " << SystemErrorCodeToString(err_);
-  // We're about to crash (CHECK). Put |err_| on the stack (by placing it in a
-  // field) and use Alias in hopes that it makes it into crash dumps.
-  DWORD last_error = err_;
-  base::debug::Alias(&last_error);
-}
-#elif defined(OS_POSIX)
-ErrnoLogMessage::ErrnoLogMessage(const char* file,
-                                 int line,
-                                 LogSeverity severity,
-                                 SystemErrorCode err)
-    : err_(err),
-      log_message_(file, line, severity) {
-}
-
-ErrnoLogMessage::~ErrnoLogMessage() {
-  stream() << ": " << SystemErrorCodeToString(err_);
-}
-#endif  // defined(OS_WIN)
-
-void CloseLogFile() {
-  LoggingLock logging_lock;
-  CloseLogFileUnlocked();
-}
-
-void RawLog(int level, const char* message) {
-  if (level >= g_min_log_level) {
-    size_t bytes_written = 0;
-    const size_t message_len = strlen(message);
-    int rv;
-    while (bytes_written < message_len) {
-      rv = HANDLE_EINTR(
-          write(STDERR_FILENO, message + bytes_written,
-                message_len - bytes_written));
-      if (rv < 0) {
-        // Give up, nothing we can do now.
-        break;
-      }
-      bytes_written += rv;
-    }
-
-    if (message_len > 0 && message[message_len - 1] != '\n') {
-      do {
-        rv = HANDLE_EINTR(write(STDERR_FILENO, "\n", 1));
-        if (rv < 0) {
-          // Give up, nothing we can do now.
-          break;
-        }
-      } while (rv != 1);
-    }
-  }
-
-  if (level == LOG_FATAL)
-    base::debug::BreakDebugger();
-}
-
-// This was defined at the beginning of this file.
-#undef write
-
-#if defined(OS_WIN)
-std::wstring GetLogFileFullPath() {
-  if (g_log_file_name)
-    return *g_log_file_name;
-  return std::wstring();
-}
-#endif
-
-BASE_EXPORT void LogErrorNotReached(const char* file, int line) {
-  LogMessage(file, line, LOG_ERROR).stream()
-      << "NOTREACHED() hit.";
-}
-
-}  // namespace logging
-
-std::ostream& std::operator<<(std::ostream& out, const wchar_t* wstr) {
-  return out << base::WideToUTF8(wstr);
-}