Require explicit selection of traits for LazyInstance

content/common/media/cdm_host_files.cc

 // Copyright 2016 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/media/cdm_host_files.h"
 
 #include <map>
 #include <memory>
 #include <vector>
 
@@ skipping 80 matching lines @@
     if (plugin.is_internal)
       continue;
 
     if (IsCdm(plugin.path))
       cdm_adapter_paths->push_back(plugin.path);
   }
 }
 
 // A global instance used on platforms where we have to open the files in the
 // Zygote process.
-base::LazyInstance<std::unique_ptr<CdmHostFiles>> g_cdm_host_files =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<std::unique_ptr<CdmHostFiles>>::DestructorAtExit
+    g_cdm_host_files = LAZY_INSTANCE_INITIALIZER;
 #endif
 
 }  // namespace
 
 CdmHostFiles::CdmHostFiles() {
   DVLOG(1) << __func__;
 }
 
 CdmHostFiles::~CdmHostFiles() {
   DVLOG(1) << __func__;
@@ skipping 216 matching lines @@
   cdm_specific_files_map_.clear();
 }
 
 // Question(xhwang): Any better way to check whether a plugin is a CDM? Maybe
 // when we register the plugin we can set some flag explicitly?
 bool IsCdm(const base::FilePath& cdm_adapter_path) {
   return !GetCdmPath(cdm_adapter_path).empty();
 }
 
 }  // namespace content