First stab at Mac breakpad support.

base/logging.cc

 // Copyright (c) 2006-2008 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 <windows.h>
 typedef HANDLE FileHandle;
 typedef HANDLE MutexHandle;
@@ skipping 507 matching lines @@
         // 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
         DisplayDebugMessage(stream_.str());
 #endif
         // Crash the process to generate a dump.
         DebugUtil::BreakDebugger();
-        // TODO(mmentovai): when we have breakpad support, generate a breakpad
-        // dump, but until then, do not invoke the Apple crash reporter.
       }
     }
   } 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 {
       DisplayDebugMessage(stream_.str());
     }
   }
 }
 
 void CloseLogFile() {
   if (!log_file)
     return;
 
   CloseFile(log_file);
   log_file = NULL;
 }
 
 } // namespace logging
 
 std::ostream& operator<<(std::ostream& out, const wchar_t* wstr) {
   return out << base::SysWideToUTF8(std::wstring(wstr));
 }