Cleanup: Add a const variable for /proc/self/exe.

base/process_util_linux.cc

 // 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/process_util.h"
 
 #include <dirent.h>
 #include <malloc.h>
 #include <sys/time.h>
 #include <sys/types.h>
@@ skipping 270 matching lines @@
 }
 
 }  // namespace
 
 namespace base {
 
 #if defined(USE_LINUX_BREAKPAD)
 size_t g_oom_size = 0U;
 #endif
 
+const char kProcSelfExe[] = "/proc/self/exe";
+
 ProcessId GetParentProcessId(ProcessHandle process) {
   ProcessId pid = ReadProcStatsAndGetFieldAsInt(process, VM_PPID);
   if (pid)
     return pid;
   return -1;
 }
 
 FilePath GetProcessExecutablePath(ProcessHandle process) {
   FilePath stat_file = GetProcPidDir(process).Append("exe");
   FilePath exe_name;
@@ skipping 523 matching lines @@
     int score_len = static_cast<int>(score_str.length());
     return (score_len == file_util::WriteFile(oom_file,
                                               score_str.c_str(),
                                               score_len));
   }
 
   return false;
 }
 
 }  // namespace base