Require explicit selection of traits for LazyInstance

chrome/browser/android/background_sync_launcher_android.cc

 // Copyright 2015 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 "chrome/browser/android/background_sync_launcher_android.h"
 
 #include "base/android/context_utils.h"
 #include "content/public/browser/browser_thread.h"
 #include "jni/BackgroundSyncLauncher_jni.h"
 
 using content::BrowserThread;
 
 namespace {
-base::LazyInstance<BackgroundSyncLauncherAndroid> g_background_sync_launcher =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<BackgroundSyncLauncherAndroid>::DestructorAtExit
+    g_background_sync_launcher = LAZY_INSTANCE_INITIALIZER;
 
 // Disables the Play Services version check for testing on Chromium build bots.
 // TODO(iclelland): Remove this once the bots have their play services package
 // updated before every test run. (https://crbug.com/514449)
 bool disable_play_services_version_check_for_tests = false;
 
 }  // namespace
 
 // static
 BackgroundSyncLauncherAndroid* BackgroundSyncLauncherAndroid::Get() {
@@ skipping 46 matching lines @@
   java_launcher_.Reset(Java_BackgroundSyncLauncher_create(
       env, base::android::GetApplicationContext()));
 }
 
 BackgroundSyncLauncherAndroid::~BackgroundSyncLauncherAndroid() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_BackgroundSyncLauncher_destroy(env, java_launcher_);
 }