Disable flaky assert in ~SyncPointManager on CrOS.

gpu/command_buffer/service/sync_point_manager.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/service/sync_point_manager.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 371 matching lines @@
     : sync_point_manager_(sync_point_manager),
       client_state_(new SyncPointClientState(order_data)),
       namespace_id_(namespace_id),
       client_id_(client_id) {}
 
 SyncPointManager::SyncPointManager(bool allow_threaded_wait) {
   global_order_num_.GetNext();
 }
 
 SyncPointManager::~SyncPointManager() {
+// TODO(reveman): Figure out why this flakes on CrOS: http://crbug.com/630625
+#if !defined(OS_CHROMEOS)
   for (const ClientMap& client_map : client_maps_) {
     DCHECK(client_map.empty());
   }
+#endif
 }
 
 std::unique_ptr<SyncPointClient> SyncPointManager::CreateSyncPointClient(
     scoped_refptr<SyncPointOrderData> order_data,
     CommandBufferNamespace namespace_id,
     CommandBufferId client_id) {
   DCHECK_GE(namespace_id, 0);
   DCHECK_LT(static_cast<size_t>(namespace_id), arraysize(client_maps_));
   base::AutoLock auto_lock(client_maps_lock_);
 
@@ skipping 37 matching lines @@
   DCHECK_LT(static_cast<size_t>(namespace_id), arraysize(client_maps_));
 
   base::AutoLock auto_lock(client_maps_lock_);
   ClientMap& client_map = client_maps_[namespace_id];
   ClientMap::iterator it = client_map.find(client_id);
   DCHECK(it != client_map.end());
   client_map.erase(it);
 }
 
 }  // namespace gpu