Initial import.

1 files changed, 866 insertions, 0 deletions

diff --git a/chromium/base/logging.cc b/chromium/base/logging.cc
new file mode 100644
index 00000000000..e836092e766
--- /dev/null
+++ b/chromium/base/logging.cc
@@ -0,0 +1,866 @@
+// 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 "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/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/safe_strerror_posix.h"
+#endif
+
+#if defined(OS_ANDROID)
+#include <android/log.h>
+#endif
+
+namespace logging {
+
+DcheckState g_dcheck_state = DISABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS;
+
+DcheckState get_dcheck_state() {
+  return g_dcheck_state;
+}
+
+void set_dcheck_state(DcheckState state) {
+  g_dcheck_state = state;
+}
+
+namespace {
+
+VlogInfo* g_vlog_info = NULL;
+VlogInfo* g_vlog_info_prev = NULL;
+
+const char* const log_severity_names[LOG_NUM_SEVERITIES] = {
+  "INFO", "WARNING", "ERROR", "ERROR_REPORT", "FATAL" };
+
+int min_log_level = 0;
+
+LoggingDestination 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* log_file_name = NULL;
+
+// this file is lazily opened and the handle may be NULL
+FileHandle log_file = NULL;
+
+// what should be prepended to each message?
+bool log_process_id = false;
+bool log_thread_id = false;
+bool log_timestamp = true;
+bool 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 = NULL;
+// An report handler override specified by the client to be called instead of
+// the debug message dialog.
+LogReportHandlerFunction log_report_handler = NULL;
+// A log message handler that gets notified of every log message we process.
+LogMessageHandlerFunction log_message_handler = NULL;
+
+// 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(NULL, module_name, MAX_PATH);
+
+  PathString log_file = module_name;
+  PathString::size_type last_backslash =
+      log_file.rfind('\\', log_file.size());
+  if (last_backslash != PathString::npos)
+    log_file.erase(last_backslash + 1);
+  log_file += L"debug.log";
+  return log_file;
+#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(NULL, FALSE, t.c_str());
+
+        if (log_mutex == NULL) {
+#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 = NULL;
+// static
+LogLockingState LoggingLock::lock_log_file = LOCK_LOG_FILE;
+
+#if defined(OS_WIN)
+// static
+MutexHandle LoggingLock::log_mutex = NULL;
+#elif defined(OS_POSIX)
+pthread_mutex_t LoggingLock::log_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+// Called by logging functions to ensure that debug_file is initialized
+// and can be used for writing. Returns false if the file could not be
+// initialized. debug_file will be NULL in this case.
+bool InitializeLogFileHandle() {
+  if (log_file)
+    return true;
+
+  if (!log_file_name) {
+    // Nobody has called InitLogging to specify a debug log file, so here we
+    // initialize the log file name to a default.
+    log_file_name = new PathString(GetDefaultLogFile());
+  }
+
+  if ((logging_destination & LOG_TO_FILE) != 0) {
+#if defined(OS_WIN)
+    log_file = CreateFile(log_file_name->c_str(), GENERIC_WRITE,
+                          FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+                          OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (log_file == INVALID_HANDLE_VALUE || log_file == NULL) {
+      // try the current directory
+      log_file = CreateFile(L".\\debug.log", GENERIC_WRITE,
+                            FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+                            OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+      if (log_file == INVALID_HANDLE_VALUE || log_file == NULL) {
+        log_file = NULL;
+        return false;
+      }
+    }
+    SetFilePointer(log_file, 0, 0, FILE_END);
+#elif defined(OS_POSIX)
+    log_file = fopen(log_file_name->c_str(), "a");
+    if (log_file == NULL)
+      return false;
+#endif
+  }
+
+  return true;
+}
+
+void CloseFile(FileHandle log) {
+#if defined(OS_WIN)
+  CloseHandle(log);
+#else
+  fclose(log);
+#endif
+}
+
+void CloseLogFileUnlocked() {
+  if (!log_file)
+    return;
+
+  CloseFile(log_file);
+  log_file = NULL;
+}
+
+}  // namespace
+
+LoggingSettings::LoggingSettings()
+    : logging_dest(LOG_DEFAULT),
+      log_file(NULL),
+      lock_log(LOCK_LOG_FILE),
+      delete_old(APPEND_TO_OLD_LOG_FILE),
+      dcheck_state(DISABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS) {}
+
+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
+  g_dcheck_state = settings.dcheck_state;
+  CommandLine* command_line = 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),
+                     &min_log_level);
+  }
+
+  logging_destination = settings.logging_dest;
+
+  // ignore file options unless logging to file is set.
+  if ((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 (!log_file_name)
+    log_file_name = new PathString();
+  *log_file_name = settings.log_file;
+  if (settings.delete_old == DELETE_OLD_LOG_FILE)
+    DeleteFilePath(*log_file_name);
+
+  return InitializeLogFileHandle();
+}
+
+void SetMinLogLevel(int level) {
+  min_log_level = std::min(LOG_ERROR_REPORT, level);
+}
+
+int GetMinLogLevel() {
+  return 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 NULL).
+  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) {
+  log_process_id = enable_process_id;
+  log_thread_id = enable_thread_id;
+  log_timestamp = enable_timestamp;
+  log_tickcount = enable_tickcount;
+}
+
+void SetShowErrorDialogs(bool enable_dialogs) {
+  show_error_dialogs = enable_dialogs;
+}
+
+void SetLogAssertHandler(LogAssertHandlerFunction handler) {
+  log_assert_handler = handler;
+}
+
+void SetLogReportHandler(LogReportHandlerFunction handler) {
+  log_report_handler = handler;
+}
+
+void SetLogMessageHandler(LogMessageHandlerFunction handler) {
+  log_message_handler = handler;
+}
+
+LogMessageHandlerFunction GetLogMessageHandler() {
+  return log_message_handler;
+}
+
+// MSVC doesn't like complex extern templates and DLLs.
+#if !defined(COMPILER_MSVC)
+// 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);
+#endif
+
+// 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(NULL, 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 = 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], NULL, NULL, false, 0, NULL,
+                     NULL, &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(NULL, &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
+}
+
+#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,
+                       int ctr)
+    : severity_(severity), file_(file), line_(line) {
+  Init(file, line);
+}
+
+LogMessage::LogMessage(const char* file, int line)
+    : severity_(LOG_INFO), file_(file), line_(line) {
+  Init(file, line);
+}
+
+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, 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)
+  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 ((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:
+      case LOG_ERROR_REPORT:
+        priority = ANDROID_LOG_ERROR;
+        break;
+      case LOG_FATAL:
+        priority = ANDROID_LOG_FATAL;
+        break;
+    }
+    __android_log_write(priority, "chromium", str_newline.c_str());
+#endif
+    fprintf(stderr, "%s", str_newline.c_str());
+    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.
+    fprintf(stderr, "%s", str_newline.c_str());
+    fflush(stderr);
+  }
+
+  // write to log file
+  if ((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, NULL);
+    LoggingLock logging_lock;
+    if (InitializeLogFileHandle()) {
+#if defined(OS_WIN)
+      SetFilePointer(log_file, 0, 0, SEEK_END);
+      DWORD num_written;
+      WriteFile(log_file,
+                static_cast<const void*>(str_newline.c_str()),
+                static_cast<DWORD>(str_newline.length()),
+                &num_written,
+                NULL);
+#else
+      fprintf(log_file, "%s", str_newline.c_str());
+      fflush(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);
+
+    // display a message or break into the debugger on a fatal error
+    if (base::debug::BeingDebugged()) {
+      base::debug::BreakDebugger();
+    } else {
+      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();
+      }
+    }
+  } else if (severity_ == LOG_ERROR_REPORT) {
+    // We are here only if the user runs with --enable-dcheck in release mode.
+    if (log_report_handler) {
+      log_report_handler(std::string(stream_.str()));
+    } else {
+      DisplayDebugMessageInDialog(stream_.str());
+    }
+  }
+}
+
+// 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 (log_process_id)
+    stream_ << CurrentProcessId() << ':';
+  if (log_thread_id)
+    stream_ << base::PlatformThread::CurrentId() << ':';
+  if (log_timestamp) {
+    time_t t = time(NULL);
+    struct tm local_time = {0};
+#if _MSC_VER >= 1400
+    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 (log_tickcount)
+    stream_ << TickCount() << ':';
+  if (severity_ >= 0)
+    stream_ << log_severity_names[severity_];
+  else
+    stream_ << "VERBOSE" << -severity_;
+
+  stream_ << ":" << filename << "(" << line << ")] ";
+
+  message_start_ = stream_.tellp();
+}
+
+#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)
+Win32ErrorLogMessage::Win32ErrorLogMessage(const char* file,
+                                           int line,
+                                           LogSeverity severity,
+                                           SystemErrorCode err,
+                                           const char* module)
+    : err_(err),
+      module_(module),
+      log_message_(file, line, severity) {
+}
+
+Win32ErrorLogMessage::Win32ErrorLogMessage(const char* file,
+                                           int line,
+                                           LogSeverity severity,
+                                           SystemErrorCode err)
+    : err_(err),
+      module_(NULL),
+      log_message_(file, line, severity) {
+}
+
+Win32ErrorLogMessage::~Win32ErrorLogMessage() {
+  const int error_message_buffer_size = 256;
+  char msgbuf[error_message_buffer_size];
+  DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
+  HMODULE hmod;
+  if (module_) {
+    hmod = GetModuleHandleA(module_);
+    if (hmod) {
+      flags |= FORMAT_MESSAGE_FROM_HMODULE;
+    } else {
+      // This makes a nested Win32ErrorLogMessage. It will have module_ of NULL
+      // so it will not call GetModuleHandle, so recursive errors are
+      // impossible.
+      DPLOG(WARNING) << "Couldn't open module " << module_
+          << " for error message query";
+    }
+  } else {
+    hmod = NULL;
+  }
+  DWORD len = FormatMessageA(flags,
+                             hmod,
+                             err_,
+                             0,
+                             msgbuf,
+                             sizeof(msgbuf) / sizeof(msgbuf[0]),
+                             NULL);
+  if (len) {
+    while ((len > 0) &&
+           isspace(static_cast<unsigned char>(msgbuf[len - 1]))) {
+      msgbuf[--len] = 0;
+    }
+    stream() << ": " << msgbuf;
+  } else {
+    stream() << ": Error " << GetLastError() << " while retrieving error "
+        << 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() << ": " << safe_strerror(err_);
+}
+#endif  // OS_WIN
+
+void CloseLogFile() {
+  LoggingLock logging_lock;
+  CloseLogFileUnlocked();
+}
+
+void RawLog(int level, const char* message) {
+  if (level >= 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 (log_file_name)
+    return *log_file_name;
+  return std::wstring();
+}
+#endif
+
+}  // namespace logging
+
+std::ostream& operator<<(std::ostream& out, const wchar_t* wstr) {
+  return out << WideToUTF8(std::wstring(wstr));
+}