base: Remove the string logging from CHECK().

content/zygote/zygote_main_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/zygote/zygote_main.h"
 
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <signal.h>
@@ skipping 420 matching lines @@
         "You are using a wrong version of the setuid binary!\n"
         "Please read "
         "https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox_development.md."
         "\n\n";
   }
 
   if (!setuid_sandbox->ChrootMe())
     return false;
 
   if (setuid_sandbox->IsInNewPIDNamespace()) {
-    CHECK_EQ(1, getpid())
-        << "The SUID sandbox created a new PID namespace but Zygote "
-           "is not the init process. Please, make sure the SUID "
-           "binary is up to date.";
+    // The SUID sandbox created a new PID namespace but Zygote is not the init
+    // process. Please, make sure the SUID binary is up to date.
+    CHECK_EQ(1, getpid());
   }
 
   if (getpid() == 1) {
     // The setuid sandbox has created a new PID namespace and we need
     // to assume the role of init.
     CHECK(CreateInitProcessReaper(post_fork_parent_callback));
   }
 
   CHECK(SandboxDebugHandling::SetDumpableStatusAndHandlers());
   return true;
@@ skipping 95 matching lines @@
   ZygotePreSandboxInit();
 
   // Check that the pre-sandbox initialization didn't spawn threads.
 #if !defined(THREAD_SANITIZER)
   DCHECK(sandbox::ThreadHelpers::IsSingleThreaded());
 #endif
 
   sandbox::SetuidSandboxClient* setuid_sandbox =
       linux_sandbox->setuid_sandbox_client();
   if (setuid_sandbox->IsSuidSandboxChild()) {
-    CHECK(EnterSuidSandbox(setuid_sandbox, post_fork_parent_callback))
-        << "Failed to enter setuid sandbox";
+    // Failed to enter setuid sandbox
+    CHECK(EnterSuidSandbox(setuid_sandbox, post_fork_parent_callback));
   } else if (sandbox::NamespaceSandbox::InNewUserNamespace()) {
     EnterNamespaceSandbox(linux_sandbox, post_fork_parent_callback);
   } else {
     CHECK(!using_layer1_sandbox);
   }
 }
 
 bool ZygoteMain(const MainFunctionParams& params,
                 ScopedVector<ZygoteForkDelegate> fork_delegates) {
   g_am_zygote_or_renderer = true;
@@ skipping 93 matching lines @@
   const bool namespace_sandbox_engaged = sandbox_flags & kSandboxLinuxUserNS;
   CHECK_EQ(using_namespace_sandbox, namespace_sandbox_engaged);
 
   Zygote zygote(sandbox_flags, std::move(fork_delegates), extra_children,
                 extra_fds);
   // This function call can return multiple times, once per fork().
   return zygote.ProcessRequests();
 }
 
 }  // namespace content