Let DCHECK in non-official-release build be opt-in with dcheck_always_on=1 only

mojo/shell/init.cc

 // Copyright 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 "mojo/shell/init.h"
 
 #include "base/logging.h"
 
 namespace mojo {
 namespace shell {
 
 void InitializeLogging() {
   logging::LoggingSettings settings;
   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
-  settings.dcheck_state =
-      logging::ENABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS;
   logging::InitLogging(settings);
   // To view log output with IDs and timestamps use "adb logcat -v threadtime".
   logging::SetLogItems(false,    // Process ID
                        false,    // Thread ID
                        false,    // Timestamp
                        false);   // Tick count
 }
 
 }  // namespace shell
 }  // namespace mojo