Fix a bug where killing pages doesn't yield a sad-tab

base/process/kill_posix.cc

 // 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.
 
 #include "base/process/kill.h"
 
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ skipping 177 matching lines @@
   bool result = kill(-1 * process_group_id, SIGKILL) == 0;
   if (!result)
     DPLOG(ERROR) << "Unable to terminate process group " << process_group_id;
   return result;
 }
 
 TerminationStatus GetTerminationStatus(ProcessHandle handle, int* exit_code) {
   return GetTerminationStatusImpl(handle, false /* can_block */, exit_code);
 }
 
-TerminationStatus WaitForTerminationStatus(ProcessHandle handle,
-                                           int* exit_code) {
+TerminationStatus GetKnownDeadTerminationStatus(ProcessHandle handle,
+                                                int* exit_code) {
+  bool result = kill(handle, SIGKILL) == 0;
+
+  if (!result)
+    DPLOG(ERROR) << "Unable to terminate process " << handle;
+
   return GetTerminationStatusImpl(handle, true /* can_block */, exit_code);
 }
 
 bool WaitForExitCode(ProcessHandle handle, int* exit_code) {
   int status;
   if (HANDLE_EINTR(waitpid(handle, &status, 0)) == -1) {
     NOTREACHED();
     return false;
   }
 
@@ skipping 273 matching lines @@
   if (IsChildDead(process))
     return;
 
   BackgroundReaper* reaper = new BackgroundReaper(process, 0);
   PlatformThread::CreateNonJoinable(0, reaper);
 }
 
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace base