base: Remove the string logging from CHECK().

content/common/sandbox_linux/sandbox_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 "content/common/sandbox_linux/sandbox_linux.h"
 
 #include <dirent.h>
 #include <fcntl.h>
 #include <stdint.h>
 #include <sys/resource.h>
@@ skipping 236 matching lines @@
 
   return sandbox_status_flags_;
 }
 
 // Threads are counted via /proc/self/task. This is a little hairy because of
 // PID namespaces and existing sandboxes, so "self" must really be used instead
 // of using the pid.
 bool LinuxSandbox::IsSingleThreaded() const {
   base::ScopedFD proc_fd(OpenProc(proc_fd_));
 
-  CHECK(proc_fd.is_valid()) << "Could not count threads, the sandbox was not "
-                            << "pre-initialized properly.";
+  // Could not count threads, the sandbox was not pre-initialized properly.
+  CHECK(proc_fd.is_valid());
 
   const bool is_single_threaded =
       sandbox::ThreadHelpers::IsSingleThreaded(proc_fd.get());
 
   return is_single_threaded;
 }
 
 bool LinuxSandbox::seccomp_bpf_started() const {
   return seccomp_bpf_started_;
 }
@@ skipping 182 matching lines @@
 
 void LinuxSandbox::StopThreadAndEnsureNotCounted(base::Thread* thread) const {
   DCHECK(thread);
   base::ScopedFD proc_fd(OpenProc(proc_fd_));
   PCHECK(proc_fd.is_valid());
   CHECK(
       sandbox::ThreadHelpers::StopThreadAndWatchProcFS(proc_fd.get(), thread));
 }
 
 }  // namespace content