Wire up OOM exception to the sad tab page.

base/process/kill.h

 // Copyright (c) 2013 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.
 
 // This file contains routines to kill processes and get the exit code and
 // termination status.
 
 #ifndef BASE_PROCESS_KILL_H_
 #define BASE_PROCESS_KILL_H_
 
@@ skipping 21 matching lines @@
   TERMINATION_STATUS_PROCESS_WAS_KILLED_BY_OOM,
 #endif
 #if defined(OS_ANDROID)
   // On Android processes are spawned from the system Zygote and we do not get
   // the termination status.  We can't know if the termination was a crash or an
   // oom kill for sure, but we can use status of the strong process bindings as
   // a hint.
   TERMINATION_STATUS_OOM_PROTECTED,        // child was protected from oom kill
 #endif
   TERMINATION_STATUS_LAUNCH_FAILED,        // child process never launched
+  TERMINATION_STATUS_OOM,                  // Process died due to oom
   TERMINATION_STATUS_MAX_ENUM
 };
 
 // Attempts to kill all the processes on the current machine that were launched
 // from the given executable name, ending them with the given exit code.  If
 // filter is non-null, then only processes selected by the filter are killed.
 // Returns true if all processes were able to be killed off, false if at least
 // one couldn't be killed.
 BASE_EXPORT bool KillProcesses(const FilePath::StringType& executable_name,
                                int exit_code,
@@ skipping 74 matching lines @@
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 // The nicer version of EnsureProcessTerminated() that is patient and will
 // wait for |pid| to finish and then reap it.
 BASE_EXPORT void EnsureProcessGetsReaped(ProcessId pid);
 #endif
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_KILL_H_