Require explicit selection of traits for LazyInstance

extensions/browser/guest_view/app_view/app_view_guest.cc

 // Copyright 2014 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 "extensions/browser/guest_view/app_view/app_view_guest.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
@@ skipping 36 matching lines @@
                const base::WeakPtr<AppViewGuest>& app_view_guest,
                const GuestViewBase::WebContentsCreatedCallback& callback)
       : guest_extension(guest_extension),
         app_view_guest(app_view_guest),
         callback(callback) {}
 
   ~ResponseInfo() {}
 };
 
 using PendingResponseMap = std::map<int, std::unique_ptr<ResponseInfo>>;
-static base::LazyInstance<PendingResponseMap> pending_response_map =
-    LAZY_INSTANCE_INITIALIZER;
+static base::LazyInstance<PendingResponseMap>::DestructorAtExit
+    pending_response_map = LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 // static.
 const char AppViewGuest::Type[] = "appview";
 
 // static.
 bool AppViewGuest::CompletePendingRequest(
     content::BrowserContext* browser_context,
     const GURL& url,
@@ skipping 210 matching lines @@
 
 std::vector<int> AppViewGuest::GetAllRegisteredInstanceIdsForTesting() {
   std::vector<int> instances;
   for (const auto& key_value : pending_response_map.Get()) {
     instances.push_back(key_value.first);
   }
   return instances;
 }
 
 }  // namespace extensions