Move compat_execinfo to the mac directory since this is mac-specific....

base/debug/debugger_posix.cc

 // Copyright (c) 2010 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/debug/debugger.h"
 #include "build/build_config.h"
 
 #include <errno.h>
+#include <execinfo.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/stat.h>
 #if !defined(OS_NACL)
 #include <sys/sysctl.h>
 #endif
 #include <sys/types.h>
 #include <unistd.h>
 
 #include <string>
 #include <vector>
 
 #if defined(__GLIBCXX__)
 #include <cxxabi.h>
 #endif
 
 #if defined(OS_MACOSX)
 #include <AvailabilityMacros.h>
 #endif
 
 #include <iostream>
 
 #include "base/basictypes.h"
-#include "base/compat_execinfo.h"
 #include "base/eintr_wrapper.h"
 #include "base/logging.h"
 #include "base/safe_strerror_posix.h"
 #include "base/scoped_ptr.h"
 #include "base/string_piece.h"
 #include "base/stringprintf.h"
 
 #if defined(USE_SYMBOLIZE)
 #include "base/third_party/symbolize/symbolize.h"
 #endif
@@ skipping 127 matching lines @@
 #else
 #define DEBUG_BREAK() asm("int3")
 #endif
 
 void BreakDebugger() {
   DEBUG_BREAK();
 }
 
 }  // namespace debug
 }  // namespace base