Allow linker initialization of lazy instance

ipc/ipc_sync_channel.cc

 // Copyright (c) 2011 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 "ipc/ipc_sync_channel.h"
 
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/threading/thread_local.h"
@@ skipping 188 matching lines @@
   bool task_pending_;
   int listener_count_;
 
   // The current send done event watcher for this thread. Used to maintain
   // a local global stack of send done watchers to ensure that nested sync
   // message loops complete correctly.
   base::WaitableEventWatcher* top_send_done_watcher_;
 };
 
 base::LazyInstance<base::ThreadLocalPointer<SyncChannel::ReceivedSyncMsgQueue> >
-    SyncChannel::ReceivedSyncMsgQueue::lazy_tls_ptr_(base::LINKER_INITIALIZED);
+    SyncChannel::ReceivedSyncMsgQueue::lazy_tls_ptr_ =
+        LAZY_INSTANCE_INITIALIZER;
 
 SyncChannel::SyncContext::SyncContext(
     Channel::Listener* listener,
     base::MessageLoopProxy* ipc_thread,
     WaitableEvent* shutdown_event)
     : ChannelProxy::Context(listener, ipc_thread),
       received_sync_msgs_(ReceivedSyncMsgQueue::AddContext()),
       shutdown_event_(shutdown_event),
       restrict_dispatch_(false) {
 }
@@ skipping 285 matching lines @@
 void SyncChannel::OnWaitableEventSignaled(WaitableEvent* event) {
   DCHECK(event == sync_context()->GetDispatchEvent());
   // The call to DispatchMessages might delete this object, so reregister
   // the object watcher first.
   event->Reset();
   dispatch_watcher_.StartWatching(event, this);
   sync_context()->DispatchMessages();
 }
 
 }  // namespace IPC