Require explicit selection of traits for LazyInstance

content/browser/frame_host/frame_tree_node.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 "content/browser/frame_host/frame_tree_node.h"
 
 #include <queue>
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 14 matching lines @@
 #include "third_party/WebKit/public/web/WebSandboxFlags.h"
 
 namespace content {
 
 namespace {
 
 // This is a global map between frame_tree_node_ids and pointers to
 // FrameTreeNodes.
 typedef base::hash_map<int, FrameTreeNode*> FrameTreeNodeIdMap;
 
-base::LazyInstance<FrameTreeNodeIdMap> g_frame_tree_node_id_map =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<FrameTreeNodeIdMap>::DestructorAtExit
+    g_frame_tree_node_id_map = LAZY_INSTANCE_INITIALIZER;
 
 // These values indicate the loading progress status. The minimum progress
 // value matches what Blink's ProgressTracker has traditionally used for a
 // minimum progress value.
 const double kLoadingProgressNotStarted = 0.0;
 const double kLoadingProgressMinimum = 0.1;
 const double kLoadingProgressDone = 1.0;
 
 void RecordUniqueNameLength(size_t length) {
   UMA_HISTOGRAM_COUNTS("SessionRestore.FrameUniqueNameLength", length);
@@ skipping 509 matching lines @@
       }
       return parent_->child_at(i + relative_offset);
     }
   }
 
   NOTREACHED() << "FrameTreeNode not found in its parent's children.";
   return nullptr;
 }
 
 }  // namespace content